1. In a food processor pulse mushrooms, onion and garlic. Sauté on high heat and cook for about 10 minutes until moisture cooks off.
2. Add in tomato paste and spices, cook for another minute then shut the flame and allow to cool.
3. In a bowl mix all of the ingredients together and form into burgers. Bake on a Gefen Parchment Paper-lined baking tray at 425 degrees Fahrenheit for 20 minutes. Allow to cool slightly before serving; they will firm up.