Pasta & Pizza with ziti

1 medium onion , chopped 4 cloves garlic , minced 1/2 lb mushroom , sliced 1 red bell pepper , chopped 2 stalks celery , sliced 2 (14 1/2 ounce) cans[...]

1 (16 ounce) box ziti pasta 3 (14 ounce) cans whole canned tomatoes 1 (16 ounce) package extra-sharp cheddar cheese salt 1 Add ziti to boiling water and cook[...]