GV comments: I adore this version of the sweet potato-black bean burrito because it's quick (they claim 22 minutes; for me it's about 30), it includes mushrooms and rice, and the texture is perfect (not pureed but not in big chunks either). Of course I leave out sour cream and dairy cheese. I use vegan cheese or my new favorite, cashew crema (from this enchilada recipe). It's hard to believe this has so many healthy ingredients in it.
Timing: Around 30 minutes
Affordability: Under $10 total
Nutrition: If you leave out the sour cream and cheese and use a relatively healthy substitute, you're doing well. Try to decrease or eliminate the oil, too.
Gluten-free if you use gluten-free tortillas.