Meatballs with Ratatouille

Name: Meatballs with Ratatouille
Ingredients: 1 1/4 pound lean ground beef (pork, turkey, or a mixture); 1/2 cup pork panko (or almond flour for pork-free); 1/4 cup Parmesan (grated, omit for dairy-free); 1 egg (lightly beaten); 3 green onions (chopped fine); 2 tablespoons herbs de Provence; 2 garlic cloves (minced); 1 tablespoon gelatin; 1/2 teaspoon salt; 1/2 teaspoon anchovy paste (or fish sauce, optional, adds umami); 1 red bell pepper (large dice); 1 onion (large dice); 2 cups eggplant (1 medium eggplant, diced); 2 cups zucchini (2 medium zucchini, diced); 8 ounces cherry tomatoes; 3 garlic cloves (minced); 1/2 tablespoon thyme (dried); 2 tablespoons olive oil; 2 tablespoons balsamic vinegar; salt and pepper (to taste); 1/4 cup Parmesan cheese (grated, optional, omit if dairy-free)