Line a large rimmed baking sheet with parchment paper.
Spread in an even layer on the prepared baking sheet.
Roast until deeply brown in spots and tender, 25 to 30 minutes.
Photo: Caitlin Bensel
Transfer to a bowl; add lime juice and toss to coat.
Divide the cauliflower-onion mixture evenly among tortillas (about 1/2 cup per tortilla).
Top each with 2 avocado wedges.
Top with radish slices and cilantro, if desired.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.