These crockpot meatball subs are one of my favorite easy meals! There's hardly any prep or hands-on time--gotta love that! Serve it up with tater tots or a green salad. What really takes this over the top is a generous amount of the Trader Joe's Aglio Olio seasoning!
Add: Add marinara sauce, frozen meatballs, and about 2 tsp. of Aglio Olio spice to your crockpot. Give everything a big stir. Cook on HIGH for 3-4 hours or on LOW of 5-6 hours.
Heat: When you are ready to make your meatball subs, preheat oven to 350°F. Open the hoagie 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 your meatballs and marinara sauce onto the toasted rolls. Top with a few more shakes of Aglio Olio and Parmesan cheese (if using) and enjoy!