Preheat your oven to 400°F.
In a food processor, combine the cooked lentils, rolled oats, egg whites, minced garlic, chopped onion, chopped fresh basil, and dried oregano. Season with a pinch of salt and pepper, and pulse until the mixture is mostly smooth but still has some texture.
Form the mixture into small meatballs, about 1 to 1.5 inches in diameter. Place them on a baking sheet lined with parchment paper and lightly drizzle with olive oil.
Bake the meatballs in the preheated oven for 15-20 minutes until they are firm and lightly browned.
While the meatballs are baking, spiralize the zucchini to create noodles. Lightly sauté the zucchini noodles in a non-stick pan for 2-3 minutes until just tender, or serve them raw if preferred.
In a small saucepan, warm the canned tomatoes with a minced clove of garlic and a pinch of salt for about 5 minutes to create a fresh marinara sauce. Stir occasionally and add extra basil if desired.
Plate the zucchini noodles, top with the baked lentil meatballs, and spoon over the fresh marinara sauce. Garnish with additional fresh basil if desired and serve immediately.