Hawaiian Beef Casserole

Ingredients

• tablespoon scooking oil
• onion, chopped
• pound ground beef
• (19 ounce) can kidney beans with liquid
• (19 ounce) can pineapple chunks with juice
• cup ketchup
• 1/2 cup brown sugar
• tablespoon cornstarch
• teaspoon sground mustard
• teaspoon salt

Instructions

1. Preheat the oven to 350 degrees F (175 degrees C).
2. Heat oil in a skillet over medium heat. Add onion; cook until soft, about 5 minutes. Crumble ground beef into the skillet; cook until completely brown, 5 to 7 minutes. Drain and set aside.
3. Meanwhile, combine beans with liquid, pineapple with juice, ketchup, brown sugar, cornstarch, mustard, and salt in a large bowl. Add ground beef mixture; stir to combine. Transfer to a large casserole dish.
4. Bake in the preheated oven until completely heated through, about 45 minutes.