These Trader Joe's meatball subs are one of my favorite easy meals! There's hardly any prep or hands-on time-- and it's done in about 15 minutes! Serve it up with tater tots or a green salad.
Add: To a large skillet over medium-high heat, add marinara sauce, frozen meatballs, and 2 tsp. of Aglio Olio spice. Give everything a big stir. Bring to a boil then reduce heat to medium and simmer for 10-12 minutes, stirring occasionally until meatballs are warmed through.
Prepare Buns: While the meatballs are cooking, preheat oven to 350°F. Open the rolls and place your provolone cheese slices inside each roll. Bake for 3-4 minutes until cheese is melted and the rolls are slightly toasted.
Assemble: Spoon meatballs and marinara sauce onto the toasted rolls. Top with a few more shakes of Agio Olio and Parmesan cheese (if using) and enjoy!