Preheat oven to 400 degrees.
Toss potatoes in 1 T of the Mexican seasoning and bake on parchment paper for about 15-20 minutes until crispy on the outside and tender on the inside.
While potatoes are baking, steamfry garlic over medium-high heat in 2 T of water for about a minute in a very large skillet.
Add chopped mushrooms and cook for about 10 minutes, or until all of the moisture has cooked out.
Add chopped spinach (or a combination of baby spinach, baby kale, and baby chard) and cook until wilted (about 3 or 4 minutes).
Add seasonings and salt.
Stir everything well.
Add the roasted potatoes into the skillet and combine well. Add salt or more Mexican seasoning if needed.