In a large skillet over medium heat, add ground beef and ground hot sausage, cooking until browned and fully cooked through, about 10 minutes. Stir occasionally to break up the meat into smaller pieces, ensuring it cooks evenly and begins to develop a nice, savory aroma. Drain any excess grease from the skillet.

While the meat is cooking, chop the Velveeta into small cubes for easier melting. After draining the grease, reduce the heat to low, and add the cubed cheese directly into the skillet with the cooked meat. Stir continuously for about 3-5 minutes, allowing the cheese to melt thoroughly and create a gooey, cohesive mixture.

Once the Velveeta is fully melted, mix in Worcestershire sauce, oregano, garlic salt, and salt to create a flavorful blend. Stir well until all ingredients are fully incorporated and the mixture has a creamy, hearty consistency.

Preheat the broiler to high while you set up your baking sheet. Line a baking sheet with slices of party rye bread, placing them neatly in a single layer.

Using a spoon or cookie scoop, generously scoop about 2 tablespoons of the meat and cheese mixture onto each slice of rye bread. Spread the mixture evenly to the edges of the bread for maximum flavor and crispiness.

Place the baking sheet under the preheated broiler, cooking the Hanky Panky Appetizers for 2-3 minutes. Watch closely as they can brown quickly; you want them hot and bubbly with a golden top.

Once done, carefully remove the baking sheet from the oven or broiler, letting the appetizers cool for a minute. If desired, garnish with chopped parsley.