Here's a good "meat 'n potato" casserole that's pretty much a one dish meal. I like to serve it with some flaky biscuits.
Beef and Potato Bake
4-5 Cups Shredded frozen hash browns
3-4 Tbs Oil
1/8 tsp pepper
1 1/2 lbs lean ground beef or turkey
1 cup water
1 pkg brown gravy mix
1/2 tsp garlic salt
10-12 oz frozen peas and carrots (the bag that is a mix of the two, the carrots are diced small)
2 cups shredded cheddar cheese
1 small can Durkee Onion rings
In a shallow 1 1/2 quart baking dish, combine potatoes, oil and pepper. Firmly press mixture on bottom and sides of pan to form shell. Bake 15-20 minutes at 400 degrees. Meanwhile, brown the meat in a deep frying pan and drain. In a Pyrex measuring cup, whisk together water and gravy mix until dissolved and pour over the meat in the pan. Add garlic salt and stir together. Bring to a boil, add vegetables and reduce heat. Cook 5 minutes. Stir in 1/2 of the cheese and 1/2 of the onion rings. Pour filling into the potato shell. Put back in the oven and bake uncovered at 350 for 15 minutes. Sprinkle remaining cheese and onion rings over top and bake 5 minutes longer.