Sauté onion, garlic, parsley, thyme, and red pepper flakes in a skillet
Use a potato masher to mash lentils in a large bowl.
Mix cooked lentils, the onion mixture, flax egg, flour, vegan cheese, and breadcrumbs together.
Use your hands to form lentil mixture into 12 meatballs
Sear meatballs in a large skillet with oil for 3-4 minutes until golden brown.