Ground turkey or beef mixed with uncooked rice, salt, pepper, tomato paste and some oregano, parsley and/or basil.
You can mix in an egg for every pound of meat if you want.
Stuff in peppers or do it the lazy way:
Layer meat mixture in a casserole dish, top with quartered, seeded green peppers, pour tomato sauce over & bake.
1lb of ground turkey
1 small onion diced small
tops of 4 peppers diced small
1 pkg sliced fresh mushrooms diced small
palm of parsley flakes
3 cloves of garlic
sauted all that in EVOO
added rice i used 2 cups of cooked jasmine rice
about 1 cup of tomato sauce
mixed it all together... stuffed it into the peppers (had TON left over could have stuffed 6 - 8 peppers)
its in a small dish with water in the base baking at 350* when they have been in for 50 minutes I will top with bread crumbs mixed with a lil parama cheese and cheddar cheese and melted butter.. mix till crumbly and top peppers and back in the oven till the topping browns