Preheat your oven to 400°F(200°C). Line two baking sheets with parchment.
Whisk together all citrus marinade ingredients in a bowl.
Toss the veggies with the marinade until fully coated (allow to sit and marinate for 15-20 minutes if possible).
Spread onto baking sheets(don’t crowd them!) and roast for 30–35 minutes, flipping once.
Meanwhile, make the crema: Blend all crema ingredients in a blender or food processor until smooth. Chill until ready to use.
Warm the corn tortillas in a dry skillet or oven.
Assemble the tacos with roasted veggies, a dollop of citrus crema, squeeze of lime juice and any toppings you like.
Serve immediately and enjoy every bite.