You've got tostadas and tacos (though it's very hard to find tostadas without partially hydrogenated oils in them anymore - let me know if you do! Sadly, Whole Foods have stopped carrying the 'Bearitos' brand, which were pretty darn wholesome), and flour tortillas in various sizes and grains. You can jam them full of any sort of vegetable (or meat if you wish) and some beans and call it a meal.
This particular recipe is more of a method...a way to get lots of veggies into one place and then into your belly. I use whatever I have on hand at home that will go well together and cram it all into a tortilla and call it dinner. But really, it's better than that. It's a go-to meal that requires little forethought, just a fridge with some vegetables in it and whatever tinned beans you have on hand. It comes together to deliver a tasty meal that is nourishing.
4-6 tortillas (flour hold up better)
1/2 can tinned refried beans with green chiles
2 tsp vegetable oil
1 lb sturdy greens (I used beet greens, but chard, kale, collards, etc will work)
(or *any* combination of vegetables you have on hand that would take well to Mexican flavors)
Wash greens thoroughly. Heat 1 tsp oil in a large skillet. Add greens and cook over medium high heat until they wilt and drastically reduce in volume, about 5 minutes. Remove and set aside.
Heat 1 tsp oil in the same skillet. Add onions and saute for 3 minutes over medium heat. Add peppers and saute a further 3-5 minutes until all veggies are soft.
Heat beans over a flame or in the microwave until bubbly. Heat tortillas in microwave (about 10-15 seconds). Put veggies in containers and let people assemble their own tacos as they see fit. Repeat as needed.