1. Using an all-in-one slow cooker on the brown setting, medium heat, sautee bell peppers in the olive oil for 2-3 minutes until they start to sweat.
2. Add in your ground beef, and season with salt and pepper. Break any meat chunks apart, and cook until the meat is cooked fully through and the juices run clear. Remove lids from cans and drain juices from the corn, mushrooms, and beans.
3. Once the ground beef is cooked, change the setting on your slow cooker (all-in-one cooker), to slow cook on low for 6 hours. Add in all remaining ingredients, and stir everything until well combined.
4. Add the cover to the slow cooker and let the slow cooker do the work.
5. Serve with your favorite rice, garlic bread, breadsticks, tortilla chips, or garlic fingers.
6. Garnish the chili with some sour cream or plain Greek yogurt, and some shredded cheese.