Caramelized Onion Hamburger Recipe

Ingredients (9)

• 1 large sweet onion
• 1 tbsp olive oil
• 1 tbsp butter
• 1.5 lb ground beef
• 1 tbsp mayo
• 2 tsp seasoned salt
• ½ tsp garlic powder
• ¼ tsp black pepper
• 4 slices provolone cheese