To a preheated hot medium-large skillet, spray a coating of Extra Virgin Olive Oil. Then add your sliced mushrooms, salt, and pepper. Spread out into an even layer as best as you can and then let them sit (don't stir) for 2-3 minutes or until the bottoms are seared and the natural sugars create this delicious brown edge. Then mix them up so that the other side is face down and gets a nice sear. They will reduce in size so that all mushrooms can now get some pan surface.
Drain and rinse the can of black beans. Add them to a food processor with with ¼ cup water, 1 clove of garlic, and the cumin. Pulse to mince the garlic and blend up the beans.
You want the beans mostly blended, but with some texture, as these will get cooked down and then spread on the tortillas. Scrape down the sides of the blender and add more water if needed, 1 tablespoon at a time, continuing to pulse until you get the ideal texture and there are no big chunks of garlic.
After blending, add the beans to the same skillet used for the mushrooms; there is no need to clean off, as its all great flavor in there! Just make sure the pan is hot again and add another light coating of Extra Virgin Olive Oil Spray. Stir the beans around as they cook so as not to burn. Turn the heat down to med-low and cook for 10 minutes so that the moisture cooks off and the beans get nice and thick.
Zest the entire lime, then quarter it. Place 3 of the quarters in a storage bag. Finely chop 1 Tbls of cilantro for the cream and put off to the side. Then rough chop another 3-4 tbls of cilantro for garnish and place in storage bag.
To a small mixing bowl, add the sour cream, the lime zest, the juice from one quarter of the lime, the 1 Tbls finely chopped cilantro, and the salt. Mix to combine, then cover and store in the fridge.
Since Manchego generally doesn't come shredded, you can shred it ahead of time using the large side of the grater. Place the cheese in a storage bag for the fridge.
Finally, wash and thinly slice the radishes. Place these in a storage bag.
On a sheet pan or in a large bowl, place the refried black beans, the mushrooms, the Cilantro Lime Cream, the radishes, the cilantro, extra Lime wedges, and the tortillas (wait to bake these on the night of the meal).