Fresh tomato wedges and sunflower sprouts (optional)
Rinse and drain beans well; place in 2-quart casserole dish. Add roasted red pepper salsa, corn and onions; stir to combine. Cover and refrigerate 1 hour or up to 24 hours.
To serve, line serving platter with lettuce. Spoon bean mixture over top. Garnish with tomatoes and sprouts, if desired.