Prepare rice (just prepared is stickier) & steam edamame.
Process the onion, garlic cloves, mushrooms, spicy mustard, soy sauce, ginger, red pepper flakes, umami powder, rice vinegar, ground flax, and arrowroot.
Add the rice, edamame, almond flour, blend until well combined but still chunky.
Shape into 6 patties and put in the fridge for 30 min, or until it's easy to pick up without falling apart.
Remove from fridge and brush top with sesame oil.
Preheat grill on medium-high for about 10 min or until 375degrees.
Lower grill to medium and carefully place patties oil side down on the grill. Cover and cook for about 10-15 min or until easy to flip.
Flip and cook until the patty is easily removed from the grill and both sides are firm, about 5 min.
Enjoy!