Chop peppers and onion into 1 inch cubes. Slice sausage into bite sized pieces, or just use meatballs. Add meat and peppers to a large skillet and top with the teriyaki sauce. Heat over medium heat until peppers soften, about 30 minutes. Serve over cooked rice with pineapple on the side, or mixed in if you prefer. I have also made this on low heat in a slow cooker. I get the meat and veggies cut up the night before and but them in (separate) zip top bags. Whichever kid gets home first dumps the bags into the slow cooker along with the teriyaki sauce and turns the cooker on low. Dinner is ready about 3-4 hours later, after baseball or soccer practice or a band concert. I love my slow cooker!