Heat a pan or skillet and add the olive oil. When the oil is hot, add the mushrooms, salt, onion powder, garlic powder.
Mix well and let the mushrooms wilt a bit. Then add the chipotle chili flakes.
Cook the mushrooms until there is no moisture. (The whole process takes about 5 to 6 minutes over medium heat). Set these mushrooms aside.
Toast the bread in your preferred way. I used my toaster. Place the cheese slice on top of the bread.
Now add the required amount of the cooked mushroom. I add about 2 tbsps.
Microwave this for 20 to 30 seconds or until the cheese melts. Serve immediately.
Notes
Adjust the salt and spices to taste. Instead of red chili flakes, you can use ground pepper.
Skip cheese for a vegan version.
Instead of cheese slices, you can also use cream cheese or ricotta cheese. We like cheddar or pepper jack cheese slice for this mushroom toast.
Instead of cheese, you can add mashed avocado or guacamole, top it up with mushrooms, and make a mushroom avocado toast.
You can also toast the bread on the pan, add the cheese slice, and warm the bread until the cheese melts. I find toaster and microwaving convenient, especially in the mornings, so I opt for that.