Jump to Recipe Print RecipeAs I stood in the kitchen on a brisk Sunday morning, a savory aroma floated through the air, beckoning my family to the table. This is the magic of a Veggie Breakfast Casserole—a dish that transforms the simplest ingredients into a hearty, comforting meal. It’s my go-to recipe when I want to wake up to smiles and energized faces, and the best part? It can be effortlessly customized to suit everyone’s taste, making it a true crowd-pleaser. Packed with vibrant vegetables and gooey cheese, this nutritious breakfast not only nourishes the body but also makes for a fantastic make-ahead option, ensuring busy weekdays don’t mean sacrificing a wholesome start. Curious about how to whip up this delightful casserole in your own kitchen? Let’s dive into the recipe! Why Is This Veggie Breakfast Casserole Amazing? Simplicity at Its Best: This recipe is incredibly easy to follow, making it perfect for novice cooks or busy families. Endless Customization: You can mix and match vegetables or cheeses according to season or preference. Want a spicy twist? Throw in some jalapeños! Make-Ahead Magic: Prepare it the night before and pop it in the oven in the morning—perfect for your bustling lifestyle. Healthy & Wholesome: With protein-packed eggs, colorful veggies, and low calories, each slice is both nourishing and delicious. Crowd-Pleaser: Whether it’s a cozy family brunch or a gathering with friends, everyone will love this hearty dish! Pair it with a refreshing fruit salad or some crispy bacon for a breakfast that truly satisfies. Check out my other favorites like the dynamic Bagel Breakfast Sliders or the convenient Skillet Breakfast Hash for more brunch inspiration! Veggie Breakfast Casserole Ingredients For the Casserole Eggs – Provide structure and protein; you can use egg substitutes for a vegan version. Milk – Adds creaminess to the eggs; try non-dairy milk for a lactose-free option. Bell Peppers – Contribute flavor and vibrant color; any variety, like red or green, works well. Spinach – Adds nutrients and volume; remove excess moisture from frozen spinach before using. Diced Tomatoes – Introduce moisture and freshness; fresh tomatoes yield a better texture. Shredded Cheese – Enhances creaminess and flavor; consider using feta or pepper jack for a twist. Salt – Enhances the overall flavor of the dish. Black Pepper – Adds a mild but essential heat. Garlic Powder – Provides foundational flavor; fresh minced garlic can be a flavorful substitute. Onion Powder – Contributes to the savory flavor; you can use fresh chopped onions instead. Optional Add-ins Jalapeños – For a spicy kick; or try red pepper flakes for some heat. Fresh Herbs – Add fresh parsley, dill, or chives to elevate the flavors. Cooked Sausage or Tofu – For an extra protein boost; they’re a delicious addition! Quinoa or Chopped Potatoes – For a heartier texture; great for adding more grain power. Chickpea Flour Mixture – Use in place of eggs for a vegan version; don’t forget the nutritional yeast for cheesiness! With this array of delicious ingredients, your Veggie Breakfast Casserole is poised to impress, ensuring a delightful start to your day! Step‑by‑Step Instructions for Veggie Breakfast Casserole Step 1: Preheat the Oven Start by preheating your oven to 350°F (175°C). This ensures your Veggie Breakfast Casserole bakes evenly and develops that golden, slightly crisp top. While the oven heats, gather your ingredients and a greased baking dish to prepare for the next steps. Step 2: Whisk the Eggs and Milk In a large mixing bowl, whisk together the eggs and milk until the mixture is smooth and well combined. Aim for a fluffy texture as you create the base for your Veggie Breakfast Casserole. This step is crucial as the eggs provide structure and richness to the dish. Step 3: Incorporate the Vegetables and Seasoning Gently fold in the diced bell peppers, spinach, and tomatoes along with shredded cheese, salt, black pepper, garlic powder, and onion powder into the egg mixture. Mix until just combined, ensuring the veggies are evenly distributed. The vibrant colors will start to create a beautiful medley! Step 4: Prepare the Baking Dish Pour the vegetable and egg mixture into the greased baking dish, spreading it evenly with a spatula. This ensures that every slice of your Veggie Breakfast Casserole gets a balanced amount of delicious veggies and cheese. Make sure it’s leveled for consistent baking. Step 5: Bake the Casserole Place the baking dish in the preheated oven and bake for 30–35 minutes. You’ll know your casserole is done when the eggs are set in the middle and the top is lightly golden brown. A toothpick inserted in the center should come out clean, signaling readiness. Step 6: Cool and Serve Once baked, remove your Veggie Breakfast Casserole from the oven and let it cool for about 10 minutes. This resting time allows the casserole to set further, making it easier to slice. Cut into squares and serve warm, enjoying the vibrant flavors and comforting textures. Veggie Breakfast Casserole Variations Feel free to get creative and tailor this recipe to your taste buds for an exciting breakfast experience! Dairy-Free: Use almond, oat, or coconut milk to keep it creamy without dairy. It’s a smooth swap that maintains flavor while catering to your dietary needs. Herb Infusion: Add fresh parsley, dill, or chives for a burst of flavor in every bite. Fresh herbs elevate the dish, marrying beautifully with the other ingredients for an aromatic touch. Spicy Kick: Incorporate diced jalapeños or red pepper flakes for those who crave a little heat. The spice adds not just warmth but also a delightful zing that will awaken your senses. Protein Boost: Mix in cooked sausage, bacon, or tofu for an energetic start. With extra protein, this casserole will keep you fuller longer, adding heartiness to your morning routine. Vegan Version: Substitute eggs with a chickpea flour mixture or an egg replacer, and sprinkle in nutritional yeast for that cheesy flavor. This swap is perfect for plant-based enthusiasts without sacrificing richness. Grain Power: Toss in some cooked quinoa or chopped potatoes for added texture. This little twist gives your casserole an enjoyable chewiness, making it feel more substantial. Seasonal Veggies: Use fresh ingredients like asparagus in spring or hearty sweet potatoes in fall to embrace seasonal produce. Staying in tune with what’s fresh not only enhances taste but also keeps your breakfast exciting! For even more delightful ideas, try pairing this casserole with fresh fruit salad or crispy bacon for a well-rounded meal. Check out my delicious Loaded Broccoli Casserole for more family-approved recipes to inspire your next brunch! Make Ahead Options Preparing your Veggie Breakfast Casserole ahead of time is a fantastic way to streamline your mornings! You can mix the egg and vegetable base up to 24 hours in advance, ensuring to refrigerate it in an airtight container to maintain freshness. Additionally, feel free to chop your vegetables and measure out your spices up to 3 days ahead; just be sure to store them in the fridge to prevent browning and sogginess. When you’re ready to enjoy this flavorful casserole, simply pour the mixture into a greased baking dish and bake it as directed. This way, you’ll savor a wholesome breakfast with minimal effort, allowing for a nutritious start to your busy day! What to Serve with Veggie Breakfast Casserole Get ready to create a wholesome breakfast spread that will delight your senses and nourish your body! Fresh Fruit Salad: Bright and refreshing, a fruit salad adds a burst of sweetness and pairs beautifully with the savory casserole. Crispy Bacon: The salty crunch of crispy bacon contrasts perfectly with the fluffiness of the casserole, creating a satisfying bite. For those seeking vegetarian options, crispy tempeh or vegan bacon works well too! Green Salad: A light green salad tossed with a zesty vinaigrette helps balance the richness of the Veggie Breakfast Casserole, as the freshness enhances every mouthful. Smoothies: Creamy smoothies packed with fruits or greens provide a nutrient-dense complement, making your breakfast not only delicious but colorful. Yogurt Parfaits: Layers of yogurt, granola, and berries offer a delightful finish to your meal, delivering a satisfying crunch and sweetness that harmonizes with the casserole. Hash Browns: Golden brown and crispy hash browns add a hearty, comforting texture that rounds out your breakfast and keeps everyone satiated. Herb Toast: Crusty bread topped with fresh herbs or garlic butter brings a savory crunch and elevates the overall flavor profile of your breakfast spread. Combining these elements creates a delightful morning experience that brings smiles to the table! How to Store and Freeze Veggie Breakfast Casserole Fridge: Store leftover slices in an airtight container for up to 4 days. This keeps the Veggie Breakfast Casserole fresh and ready for quick breakfasts. Freezer: For longer storage, freeze the casserole for up to 3 months. Wrap individual portions tightly in plastic wrap, then place them in a freezer-safe bag. Reheating: To enjoy, reheat in the microwave for 1-2 minutes or bake in a preheated oven at 350°F for about 15-20 minutes. Make sure it’s heated through before serving! Expert Tips for Veggie Breakfast Casserole Veggie Prep: Ensure veggies are thoroughly dried: Soggy vegetables can ruin the casserole’s texture, so remove excess moisture, especially from frozen spinach. Rest Before Baking: Let it sit for 15 minutes: If prepared in advance, allow the mixture to come to room temperature before baking for more even cooking. Herb Power: Fresh herbs brighten flavors: Adding freshly chopped herbs like parsley or chives can elevate the overall taste of your Veggie Breakfast Casserole. Check for Doneness: Use a toothpick test: Insert a toothpick in the center; if it comes out clean, it’s done! Continue baking longer if needed. Storage Tips: Keep leftovers fresh: Store in an airtight container for up to 4 days, or freeze for up to 3 months for a quick breakfast option. Veggie Breakfast Casserole Recipe FAQs What is the best way to select ripe vegetables for my casserole? Absolutely! When it comes to choosing veggies like bell peppers and tomatoes, look for those that are firm and vibrant in color with no dark spots or blemishes. Fresh, seasonal produce will always offer the best flavors and textures for your Veggie Breakfast Casserole. How should I store leftovers? You can store your Veggie Breakfast Casserole in an airtight container in the fridge for up to 4 days. This keeps it fresh, making it easy to grab a slice on busy mornings! Just reheat in the microwave or oven until warmed through to enjoy the deliciousness again. Can I freeze the Veggie Breakfast Casserole? How? Yes! Freezing is a fantastic way to preserve your Veggie Breakfast Casserole. After it has cooled completely, wrap individual portions tightly in plastic wrap and then place them in a freezer-safe bag. It can be frozen for up to 3 months. To reheat, just pop it in the microwave for 1-2 minutes or bake at 350°F for about 15-20 minutes until heated through. What can I do if my casserole turns out soggy? Very! If you find that your casserole has come out soggy, check if the vegetables were properly drained of excess moisture before mixing. If it’s already cooked, try baking it a bit longer to evaporate some of the moisture—this can help firm it up. Also, consider pre-cooking any vegetables that contain a lot of moisture, such as tomatoes or spinach, to prevent this from happening next time. Are there any dietary considerations for my Veggie Breakfast Casserole? Of course! This casserole is easily customizable to cater to various dietary needs. If you’re cooking for someone with a lactose intolerance, simply swap out dairy milk and cheese for non-dairy alternatives like almond or coconut milk and vegan cheese. For a gluten-free version, just ensure all ingredients are certified gluten-free. Always remember to check for any allergies related to specific vegetables or ingredients when preparing for guests! Can I add more protein to my Veggie Breakfast Casserole? Absolutely! For a protein boost, mix in cooked sausage, bacon, or even tofu into your Veggie Breakfast Casserole. Eggs provide a solid protein base, but adding extra sources can elevate the dish further. You can also toss in some chickpeas or quinoa for easy plant-based protein options! Savor the Morning with this Easy Veggie Breakfast Casserole This Veggie Breakfast Casserole is a quick and customizable dish packed with vibrant vegetables and gooey cheese, perfect for busy mornings. Print Recipe Pin Recipe Prep Time 15 minutes minsCook Time 35 minutes minsCooling Time 10 minutes minsTotal Time 1 hour hr Servings: 6 slicesCourse: BreakfastCuisine: AmericanCalories: 250 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Casserole6 large Eggs you can use egg substitutes for a vegan version.1 cup Milk try non-dairy milk for a lactose-free option.1 cup Bell Peppers any variety, like red or green, works well.2 cups Spinach remove excess moisture from frozen spinach before using.1 cup Diced Tomatoes fresh tomatoes yield a better texture.1 cup Shredded Cheese consider using feta or pepper jack for a twist.1 teaspoon Salt1 teaspoon Black Pepper1 teaspoon Garlic Powder fresh minced garlic can be a flavorful substitute.1 teaspoon Onion Powder you can use fresh chopped onions instead.Optional Add-ins1 jalapeño Jalapeños for a spicy kick; or try red pepper flakes for some heat.0.5 cup Fresh Herbs add fresh parsley, dill, or chives to elevate the flavors.1 cup Cooked Sausage or Tofu for an extra protein boost; they're a delicious addition!1 cup Quinoa or Chopped Potatoes for a heartier texture; great for adding more grain power.1 cup Chickpea Flour Mixture use in place of eggs for a vegan version; don’t forget the nutritional yeast for cheesiness! Equipment Baking dishmixing bowlWhisk Method Step-by-Step InstructionsPreheat your oven to 350°F (175°C). Gather your ingredients and a greased baking dish.In a large mixing bowl, whisk together the eggs and milk until smooth and well combined.Fold in the diced bell peppers, spinach, tomatoes, shredded cheese, salt, black pepper, garlic powder, and onion powder until just combined.Pour the mixture into the greased baking dish and level it with a spatula.Bake in the preheated oven for 30–35 minutes until the eggs are set and the top is golden brown.Remove from oven, cool for 10 minutes, then slice and serve warm. Nutrition Serving: 1sliceCalories: 250kcalCarbohydrates: 10gProtein: 12gFat: 15gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 7gCholesterol: 180mgSodium: 400mgPotassium: 300mgFiber: 2gSugar: 3gVitamin A: 500IUVitamin C: 20mgCalcium: 150mgIron: 2mg NotesStore leftover slices in an airtight container for up to 4 days. For longer storage, freeze for up to 3 months. 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