Crockpot Pasta Fagioli Soup (tastes like Olive Garden's)

2 lbs. ground chuck, browned, drained, and rinsed
1 onion, chopped
3 carrots, chopped
4 stalks celery, chopped
2, 28 oz. cans diced tomatoes, undrained (I used Del Monte with basil, oregano, and garlic added)
16 oz. can dark red kidney beans, drained and rinsed
16 oz. can white kidney beans, drained and rinsed
3 cans beef broth
4 T. Italian seasoning
24 oz. can spaghetti sauce (I used Del Monte with green pepper and mushrooms added)
8 oz. dry pasta
bread bowl, optional

Place liner in crockpot, Place everything else, except pasta in crockpot. Cook on low 7-8 hours, or high 4-5 hours. Add pasta during last 30 minutes. Serve in bread bowl if desired. Delicious!