01 - 
                In a large skillet set over medium heat, sear the ground beef until evenly browned, breaking up any clumps as it cooks.
              
              
              
                02 - 
                Add the diced onion, green bell pepper, and red bell pepper to the skillet and sauté until the vegetables are softened, about 4 minutes.
              
              
              
                03 - 
                Transfer the beef and vegetable mixture to a 6-litre slow cooker.
              
              
              
                04 - 
                Add the minced garlic, Italian seasoning, salt, pepper, tomato sauce, diced tomatoes, and beef broth to the slow cooker. Stir thoroughly to combine.
              
              
              
                05 - 
                Cover and cook on high for 3.5 hours, allowing the flavours to meld.
              
              
              
                06 - 
                One hour before serving, cook the macaroni pasta separately according to the package directions. Drain well.
              
              
              
                07 - 
                Thirty minutes before serving, gently stir the cooked pasta and frozen peas into the slow cooker. Cover and allow to heat through. Serve hot, garnished as desired.