Mom's Traditional Pasta Salad / Six Sisters' Stuff

Ingredients

• 12 ounces rotini tri-colored pasta
• 1 red pepper (chopped)
• 1 green pepper (chopped)
• 1 cucumber (sliced)
• 1 can sliced black olives
• 2 tomatoes (chopped)
• 1 can mushrooms (small)
• 1 package pepperoni (small, (cut into quarters, or you can use the new mini pepperoni))
• 8 ounces marbled cheddar (1 block, , cut into cubes (any cheese will work))
• 1 red onion (diced)
• 16 ounces italian salad dressing ((any brand works great))