Tilapia Taco's with Cucumber Sauce

I love fish tacos and keep looking for new and healthy ways to cook them.   I love the freshness of this cucumber sauce.  I think this is about 280 calories for each taco.  You could eat two with no problem for that few of calories.

TILAPIA TACO'S WITH A CUCUMBER SAUCE
(makes 8)

Ingredients:
*1 tablespoon olive oil
*1 pounds tilapia fillets
*1 teaspoon ground coriander
*1/2 teaspoon kosher salt
*1/4 teaspoon ground black pepper
*2 green onions, sliced
*6 small radishes, sliced
*1 garlic clove, minced
*1 cucumber, sliced & cut in half
*1/2 lime, juiced
*zest from half of lime
*1-2 teaspoons dried cilantro
*1/8 cup reduced-fat sour cream
*1/8 cup plain greek low-fat yogurt
*8 low-carb wholewheat tortillas
*1/4 teaspoon dill weed
*1/8 teaspoon black pepper
*1/4 teaspoon sea salt

Directions:
~In a medium bowl, toss the radishes, green onions, garlic, cucumber, lime juice, greek yogurt, sour cream, lime zest, cilantro, salt & pepper.
~Store in the refrigerator for at least 1 hour.
~Heat stovetop grill (or outdoor grill) to high.
~Sprinkle salt, pepper & coriander over fish.
~Oil grill, and cook 2-4 minutes on each side, break apart.
~Divide the fish between the tortillas, and top with the cucumber sauce.

*I like to squeeze a little lime juice to the taco once it's put together.