Cheesy Bean Casserole

From Weight Watchers "5 Ingredient 15 Minute" cookbook.

• Ready In: 20 mins
• Serves: 4

Ingredients

• 1  cup onion, chopped
• 2 (15 ounce) cans chili beans, drained (hot kidney beans)
• 2 (14 1/2ounce) cans tomatoes, drained and chopped
• 1⁄2 teaspoon garlic powder
• 1⁄4 teaspoon pepper
• 1  cup cheddar cheese, shredded
•  cooking spray

Directions

1. Preheat oven to 400°F.
2. Coat a nonstick skillet with cooking spray and place over medium-high heat.
3. Add onion; saute until tender.
4. Stir in beans next three ingredients; cook 3 minutes or until thoroughly heated, stirring well.
5. Place in one 8 inch baking dish or four 8 ounce individual dishes; sprinkle with cheese.
6. Bake uncovered for 5 minutes or until cheese melts.
7. Let stand 5 minutes before serving.