1Mix ground beef, 1/4 cup of the marinade and bell pepper in medium bowl until well blended. Shape into 4 patties.
2Broil or grill over medium heat 4 to 6 minutes per side or until burgers are cooked through (internal temperature reaches 160°F). Meanwhile, broil or grill pineapple slices 1 to 2 minutes per side or until golden brown. Brush burgers and pineapple slices with remaining 1/4 cup marinade while cooking.
3Serve burgers on toasted rolls with pineapple slices.