- cooking spray
- 1 pound ground beef
- 2 cups chopped onion
- 2 (16 ounce) cans pork and beans
- 1 (16 ounce) can kidney beans, drained
- 1 cup ketchup
- 3/4 cup brown sugar
- 2 tablespoons mustard
- 1 tablespoon white vinegar
- 1 teaspoon salt
- Preheat oven to 350 degrees F (175 degrees C). Spray a casserole dish with cooking spray.
- Cook and stir ground beef and onion in a skillet over medium heat until beef is browned and onions are translucent, 10 to 15 minutes. Drain well.
- Mix pork and beans, kidney beans, ketchup, brown sugar, mustard, vinegar, and salt in a large bowl. Stir hamburger mixture into bean mixture. Pour hamburger-bean mixture into prepared casserole dish.
- Bake in the preheated oven until bubbling, about 45 minutes.