4 cheesy beef mushroom pizza Recipes

uncooked rigatoni pasta (9 oz), lean ground beef (at least 80%), sliced ripe olives, mushroom stems and pieces, drained, pasta sauce (any variety), shredded mozzarella cheese (4 oz)

uncooked rigatoni pasta, ground beef, sliced ripe black olives, mushroom stems and pieces, primavera pasta sauce, shredded mozzarella cheese

shredded unpeeled zucchini (about 3 medium), salt, shredded part-skim mozzarella cheese, divided, shredded cheddar cheese, divided, grated parmesan cheese, eggs, ground beef, chopped onion, tomato sauce, garlic powder, dried oregano, chopped green pepper, mushroom stems and pieces, drained