jenny's homemade spaghetti sauce for a crowd

Ingredients

• 2 pounds ground chuck (or 1 lb. beef plus 1 lb. italian sausage)
• 1 medium bell pepper, chopped
• 1 medium onion, chopped
• 1 pint chopped mushrooms
• 1 (28 oz.) can italian seasoned diced tomatoes
• 1 (15 oz.) can prepared pizza sauce
• 1 package italian spaghetti suace powder mix
• 1 (24 oz.) - bottle ketchup
• 1 (16 oz.) package spaghetti noodles, boiled until tender