Heat a olive oil over medium to medium high heat in saute pan and add garlic and onion.
Sprinkle with a bit of salt and pepper to taste and saute stirring frequently for 5 minutes until they are sweating but not browning.
Add mushrooms, season with salt and pepper and allow them to brown 3-4 more minutes stirring often.
Add greens to the pan and season liberally with salt, pepper, garlic powder and crushed red pepper. Mix everything together and allow the greens to cook down for 3-5 minutes, turning them periodically.
Once everything is well combined serve as a side dish or over rice as a meatless main dish.