Pepperoni Pizza Casserole

By tburton1219

4.25 / 5

15min

45min

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1 pound ground beef
1 (8 ounce) package uncooked egg noodles
1 (16 ounce) jar spaghetti sauce or as needed
1 (2.25 ounce) can sliced black olives drained
1 (2.5 ounce) can sliced mushrooms drained
1 (8 ounce) package sliced pepperoni coarsely chopped
20 ounces shredded mozzarella cheese divided