These easy slow cooker barbecue sausages are flavored with a simple homemade barbecue sauce along with chunks of onions and optional peppers. I added chunks of pineapple from a 9-ounce can to give it some sweet-sour flavor. Serve the sausages hot from the slow cooker as an appetizer with toothpicks, plates, and napkins provided for your guests. Or serve them as an entree with rice and steamed green beans or broccoli. I used andouille sausages in the pictured dish, but kielbasa, cooked italian sausages, or another type of smoked or fully cooked sausage may be used. Or use little smoked sausages, hot dog chunks, or cocktail wieners in the dish.