Description
Indulge in the ultimate comfort food with these Cheesy French Onion Meatball Subs. Tender meatballs smothered in caramelized onions, topped with a blend of gooey cheeses, all nestled in a warm sub roll.
Ingredients
Meatballs:
- 1 pound ground beef
- 1/4 cup breadcrumbs
- 1 egg
- 1 teaspoon garlic powder
- 1 teaspoon salt
- 1/2 teaspoon black pepper
Caramelized Onions:
- 1 tablespoon olive oil
- 2 large yellow onions, thinly sliced
- 1 tablespoon butter
- 1 teaspoon sugar
- 1 teaspoon fresh thyme (or 1/2 teaspoon dried)
- 1/2 cup beef broth
Assembly:
- 4 sub rolls or hoagie buns
- 1 1/2 cups shredded mozzarella cheese
- 1/2 cup shredded gruyère or Swiss cheese
- Fresh parsley for garnish (optional)
Instructions
- Prepare Meatballs: Mix ground beef, breadcrumbs, egg, garlic powder, salt, and pepper. Form into 1-inch meatballs and bake at 375°F for 18–20 minutes.
- Caramelize Onions: Cook onions in olive oil and butter until caramelized. Add sugar, thyme, and beef broth; simmer until slightly reduced.
- Assemble: Combine cooked meatballs with onion mixture. Fill sub rolls, top with cheeses, and bake until cheese is melted and bubbly. Garnish with parsley.
Notes
- Toast sub rolls for added flavor.
- Store-bought meatballs can be used as a time-saving option.
- Experiment with cheese variations like provolone or all mozzarella.
