I made this for dinner tonight. OMG, it was delicious, and so easy to prepare (a must for me). Hubby and son really liked it too, and the cats were begging for a bite as well.

I didn't calculate all of the nutritional info for this recipe, but I do know that tilapia has 36 calories, 1 gram fat, and 7 grams of protein per each ounce...so this would definitely be a high protein dish. I doubled the recipe below, since hubby and son are carnivores, lol. If you have problems with butter or margarine, I think it could definitely be cut back some, or even replaced partially with canola or olive oil.
Tilapia with Garlic Butter
2 tablespoons butter (I used 'light' stick margarine)
2 cloves garlic, finely minced (I used the jarred kind)
dash pepper
dash salt
pinch dried dillweed or parsley (I used the parsley)
dash paprika
4 tilapia fillets
In saucepan, combine butter, garlic, pepper, salt, dillweed, and paprika. Heat over low heat until butter is melted and starts simmering. (I microwaved it on 50% heat instead until melted.) Remove from heat. Brush a little of the butter mixture in the bottom of a shallow baking dish (line baking dish with foil, if desired) then place tilapia fillets on the buttered area.
Brush top of each tilapia fillet with the seasoned butter mixture. Bake at 350° for 12 to 15 minutes, until tilapia flakes easily with a fork.
Serves 2.