Lightly spray a 9×13 pan with cooking spray. Unroll crescent rolls and press them into the bottom of the 9×13 pan, ensuring the seams are sealed.
Sprinkle your choice of cooked meat (such as sausage or ham) or vegetables (like bell peppers or mushrooms) over the crescent rolls. Top with shredded cheddar cheese.
Whisk together eggs, milk, and ranch dressing mix until well combined. Pour the mixture over the meat and cheese.
Bake for 25-35 minutes or until the center is set and the casserole is golden brown.
Notes
Customize the casserole by adding your favorite cooked meats or vegetables for added flavor and texture.