Vegan Eggplant Parmesan Sub Sandwiches

Name: Vegan Eggplant Parmesan Sub Sandwiches
Prep time: 35 min
Cook time: 20 min
Total time: 55 min
Cuisine: European, American, Italian, Mediterranean
Ingredients: 2 tablespoons olive oil; 3 cloves garlic, minced; ½ cup yellow onion, minced; 2 - 8 ounce cans tomato sauce; 2 tablespoons tomato paste; 1 tablespoon fresh basil, minced; 2 teaspoons white sugar (vegan); 1 teaspoon Italian seasoning; ½ teaspoon red pepper flakes; Salt and pepper to taste, optional; 4 sourdough rolls, cut in half lengthwise; 1 eggplant, sliced into ½” rounds; About 1-2 cups vegetable oil, enough for frying the eggplant; 1 cup panko bread crumbs; 1 cup unsweetened, unflavored almond milk; ½ cup flour; ½ cup vegan parmesan cheese (we used Follow Your Heart Parmesan shreds); 2 tablespoons cornstarch; 3 teaspoons Kosher salt, divided; Vegan butter; Garlic powder; Vegan grated Parmesan (we used Follow Your Heart brand); Sliced vegan cheese of your choice (we used Follow Your Heart Provolone slices); Fresh basil, minced