Meatballs make everything better, from pasta to soup. This week, we'll share some recipes that utilize different styles of meatballs. Today's comes from the food blog Smitten Kitchen.

INGREDIENTS

Meatballs
The baguettes or seeded sandwich rolls you’ll use for your sandwiches
2 lb. ground meat of your choice (pork, beef, veal, chicken, turkey or a blend thereof)
2 tablespoons chopped parsley
1/3 cup finely grated Parmesan or Romano cheese
3/4 teaspoon salt
Pinch of red pepper flakes
2 small garlic cloves, minced
1 teaspoon onion powder
1 teaspoon Worcestershire sauce
1 large egg
Olive oil
4 cups prepared tomato sauce (plus extra if you like a lot of extra sauce)

Caramelized onions
2 large yellow onions, thinly sliced
1 tablespoon butter
1 tablespoon olive oil
Salt

Assembly
2 cups coarsely shredded Gruyère

For directions on how to prepare this recipe, follow this link.