A.B.
I use a quick, cheater sort of recipe. Ground sirloin, sprinkled with seasoning salt, browned and drained. Mix in an envelope of brown gravy mix and however much water the gravy mix calls for. Layer vegetables on top; I use stuff from a can, drained. On top go the instant mashed potatoes already prepared according to package directions. Last is grated cheddar cheese. Bake on 350 until hot and browned.
When I'm feeling spunky, I make my own gravy, use fresh pre-steamed veggies, and make home-made mashed potatoes. You can also use some dried herbs - I love thyme in this recipe.