Creating your Crescent Roll Breakfast Casserole is a breeze if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Baking Dish: Lightly grease a 9×13-inch baking dish.
3. Roll Out the Dough: Open the cans of crescent roll dough and separate the triangles. Lay them out in the baking dish, pressing the seams together to form a crust.
4. Cook the Meat and Vegetables: In a skillet over medium heat, cook the diced onion and bell pepper until softened. If using sausage or ham, add it to the skillet and cook until heated through.
5. Whisk the Eggs and Milk: In a large mixing bowl, whisk together the eggs, milk, salt, and pepper until well combined.
6. Add Filling: Evenly distribute the meat and vegetable mixture over the crescent roll crust. Then, pour the egg mixture over the top, ensuring it covers everything. Sprinkle shredded cheese on top.
7. Bake: Place the dish in the preheated oven and bake for 30-35 minutes or until the casserole is set and the top is golden brown.
8. Cool and Serve: Remove from the oven and let it cool for a few minutes. Cut into squares and serve warm.

With these easy steps, your Crescent Roll Breakfast Casserole will be ready to impress family and friends!