Green Bean Casserole

Ingredients

• 1 onion, chopped
• 1 Tbsp. oil
• 1 (8 oz.) can tomatoes, drained
• 1/4 tsp. salt
• 1/8 tsp. crushed red pepper
• 1/4 c. bread crumbs
• 1/2 green pepper, diced
• 1 (10 oz.) pkg. frozen green beans, cooked
• 1/8 tsp. garlic powder
• 1 Tbsp. mayonnaise