Cook spaghetti. Cook hamburger with chopped onions and green pepper. Add tomato sauce, diced tomatoes, tomato paste, Italian seasoning and garlic powder. Let this simmer awhile.
Grease a 10-inch pie plate (can us Pam). Add to the cooked spaghetti beaten eggs or eggbeaters and parmesan cheese. Mix this well and line the pie plate with spaghetti mixture. Add ricotta cheese on top of spaghetti. Leave a rim, (like you would for a pie crust). Add the cooked sauce to the top of the ricotta and then sprinkle with mozzarella cheese.