Preheat your oven to 425°F and line a baking sheet with parchment paper.
Season the cod fillet with salt, pepper, and chili powder on both sides.
Place the seasoned cod on the baking sheet and bake for 12-15 minutes or until the fish is opaque and flakes easily.
While the fish bakes, prepare the lime slaw by combining shredded cabbage, nonfat Greek yogurt, lime juice, olive oil, and fresh cilantro in a bowl. Toss well and season with a pinch of salt and pepper.
Warm the corn tortillas in a dry skillet over medium heat for about 30 seconds on each side.
Once the cod is baked, flake it into bite-sized pieces.
Assemble the tacos by placing pieces of cod onto each tortilla, topping with a generous spoonful of lime slaw, and finishing with an extra sprinkle of cilantro if desired.
Serve immediately and enjoy these light, crispy, and zesty fish tacos.