Preheat oven to 425F.
Using Pam cooking spray, spray a large sheet pan with cooking spray.
In a small cup, mix 1 tbs of olive oil, tarragon, and lemon juice
Arrange Tilapia fillets on sheet pan in a way that they are not overlapping.
Sprinkle garlic powder, salt and pepper on top of Tilapia fillets.
Drizzle oil mixture on Tilapia fillets.
Drizzle remaining 1 tbs of olive oil on broccoli.
Put sheet pan in 425F degree oven for 20 min.
Salt again to taste if needed.
