In a large bowl combine steak, mushrooms, garlic, soy sauce, olive oil, basil, thyme, salt and pepper.
Cover and set in the fridge for 15 to 30 minutes.
Take out from fridge and set on the counter for 15 minutes.
Cut out 4 large heavy-duty foil sheets. If you don't have heavy-duty foil, you can just double up on regular foil.
Divide steak and mushrooms between the sheets of foil.
Wrap foils tightly around the steak and mushrooms and seal it all together.
GRILL METHOD
Preheat grill to HIGH.
Transfer foil packets to the grill and grill over high heat for 10 minutes per side.
Garnish with crushed red pepper and green onions, then serve.
OVEN METHOD
Preheat oven to 425˚F.
Wrap foils tightly around the steak and mushrooms and seal it all together.
Cook for 20 to 22 minutes, or until internal temperature of steak reaches at least 140˚F. Use an Instant Read Thermometer to check for doneness. Just poke through the foil with the thermometer and set it into one of the steak pieces.
If you want a nice char on the steak, open up the packets the last 2 minutes of cooking and pop them under the broiler for a couple minutes.
Garnish with crushed red pepper and green onions, then serve.
Nutritional info is an estimate and provided as courtesy. Values may vary according to the ingredients and tools used. Please use your preferred nutritional calculator for more detailed info.