Add the onion, peppers, celery, garlic to a large skillet & spray with avocado oil. Sauté over medium high heat until onions are translucent & veggies are almost fully cooked.
Remove the skillet from the heat, lower the fire & add all the other toppings, beans & tomato sauce. Heat again over medium-high heat for another 2-3 minutes to combine the ingredients.
Remove from the heat & top with green onion! Enjoy!