10-Minute Tempeh Sandwich

Name: 10-Minute Tempeh Sandwich
Prep time: 2 min
Cook time: 8 min
Total time: 10 min
Cuisine: American
Ingredients: 8 oz tempeh; 3 tbsp soy sauce; 1 tsp liquid smoke; 1/2 tsp garlic powder; 1/4 tsp onion powder; 2 slices vegan gouda (or another vegan cheese of your choice); 4 slices bread of choice; 1/2 large avocado (ripe); 2 pieces romaine