Sheet pan turkey meatball subs with vegetables make dinner simple and satisfying—juicy meatballs, roasted veggies, and melty cheese piled on toasted rolls.
Preheat oven to 400 degrees F. Line a sheet pan with parchment paper and set aside.
Add the breadcrumbs, egg, chicken broth, onion powder, garlic powder, paprika, 1 tsp of salt and a dash of pepper to a large bowl and whisk well. Add the turkey and stir to combine. Roll the turkey into 12 golf ball-sized meatballs and place onto the sheet pan.
Place the broccoli and cauliflower on the sheet pan with the meatballs and drizzle with olive oil and sprinkle the remaining salt and pepper on top. Bake for 20-22 minutes or until the turkey is cooked through.
Place the hoagie rolls onto another sheet pan or in a baking dish and toast for three minutes so they don't get soggy.
Place three meatballs in each roll. Pour some marinara sauce on the meatballs, then top with the mozzarella. Broil in the oven for 1 to 2 minutes or until the cheese is melted. Serve the subs with the veggies on the side. Enjoy!