In a 10" oven-safe skillet, heat oil over medium-high. Add onions and season with salt and pepper. Cook until onions are browned and caramelized, 20 to 25 minutes, stirring occasionally.
When onions are almost caramelized, add meatballs to a microwave-safe bowl. Microwave meatballs on high until warmed through, 3 to 4 minutes.
Preheat broiler on high. To skillet, add consomme and meatballs, and bring to a simmer. Season with salt and pepper. Sprinkle cheese on top. Broil until cheese has melted and liquid is bubbling, 2 to 3 minutes.
Tip: Serve with warm French bread or over buttered egg noodles.
Source: Hannaford fresh Magazine, September 2025