Boil a bot of water. Cut tempeh in half and steam in water for 10-15 minutes.
Prepare flax egg, and let sit for at least 5 minutes.
Over medium heat, sauté onion until translucent (3-4 minutes) then garlic sauté until fragrant.
Add onion and garlic mixture to a food processor or blender. Pulse a few times.
Drain tempeh and cut into half again and add to blender. Pulse to break down tempeh.
Add flax egg and blend until evenly combined. Then stir in bread crumbs.
Form into about 2 inch meat balls.
Boil a pot of water for pasta. And cook until al dente.
In a pan over medium heat, light oil and add meatballs. Turn over every few minutes until browned on all sides.
Then pour in pasta sauce and let simmer for a few minutes.
Drain pasta once cooked and plate!