Heat the olive oil in a skillet over medium-low heat. Add in the mushrooms and garlic and stir. Cook, stirring occasionally, until the mushrooms brown, about 5 to 6 minutes. Stir in the paprika and cumin. Shake in the liquid smoke and toss. Sprinkle with salt and pepper and turn off the heat.
To make the quesadillas, place a sprinkling of cheese on a tortilla, then the mushrooms on a tortilla with another sprinkling of cheese. Top with another tortilla! You can use my oven-baked method above, or add another drop of butter or olive oil to a skillet and cook the quesadilla on both sides until golden and crispy.
Slice and serve immediately with the avocado cream, pickled onions, cotija cheese and shredded lettuce.
Add ingredients to a blender or food processor and puree until smooth and creamy.