Preheat oven to 400°F (200°C). Toss chopped beets with olive oil, salt, and pepper on a lined baking sheet. Roast for 25–30 minutes, flipping once, until soft and slightly browned.
Heat chickpeas in a skillet with a bit of oil, salt, pepper, and cumin (optional). Cook for 5–7 minutes until warm and slightly crispy.
Mix tahini, lemon juice, garlic, cumin, and salt in a bowl. Slowly add water and stir until it’s smooth and creamy.
Heat tortillas in a dry pan or microwave for a few seconds until soft and bendable.
Add greens, chickpeas, roasted beets, and sauce to each tortilla. Include any extras you like (feta, pickled onions, etc.).
Fold the sides in, roll it up tight, and slice if you like. Eat warm or chilled.