1 - 1 1/2 lbs. hamburger
1 green pepper
1 lb. box rotini
1 (40 oz.) jar of your favorite spaghetti sauce
Mozzarella cheese
Pepperoni

Brown hamburger in medium saucepan. Drain grease off. Add sauce and chopped green pepper. While hamburger browns and sauce is heating, cook the rotini until desired tenderness. Drain pasta. Place pasta in casserole dish. (I spray with Pam to make clean up easier.) Add sauce mixture and mix thoroughly. Sprinkle with Mozzarella, a little or a lot, it's all to your taste. Top with pepperoni.

Bake in a preheated 350 degree oven for approximately 20 minutes, long enough to melt the Mozzarella cheese and brown it slightly and to cook the pepperoni. Serve. (Usually have some sauce left, save if anyone wants more sauce or mix leftovers with it in saucepan, makes re-heating easier.)