||Cook bacon according to package directions. Let cool; break each piece in half. Set aside.
||If grilling, grease grill. Preheat grill or broiler.
||In a medium bowl, stir 2 tablespoons drained baked beans, along with the minced red onion, into the ground turkey. Shape into 4 burgers. Grill or broil, turning occasionally, 10 minutes or until meat thermometer inserted in center registers 170° F.
||Meanwhile, empty remaining baked beans into a small saucepan and heat on the stove, or on the grill if room allows. During the last 2-3 minutes of cooking burgers, toast buns on the cooler portions of the grill.
||To serve, place each patty on a toasted bun. Top each patty with some bacon, a scoop of hot baked beans, and some red onion, tomato slices and lettuce. Spread mustard and mayonnaise on the top half of each bun if desired.