Brown hamburger and pepperoni; pour in pizza sauce and simmer about 20 minutes. Pour over cooked noodles; cover with cheese. Bake at 350 degrees until cheese melts.
Brown hamburger, drain. Add peppers ... and mushrooms. Cook noodles, drain. When noodles are done, add hamburger mixture, add pizza sauce, mix well. Put 1/2 mixture in large casserole dish; add 1 cup cheese, ... degrees for 20 minutes.