Preheat the oven to 400 degrees
Line a baking sheet with parchment paper
Arrange the cod fillets on the baking sheet. sprinkle cod with sea salt, garlic, tomatoes, and feta cheese.
Bake in the oven for 10-12 minutes. Keep your eye on the fish as to avoid overcooking the fish.
Remove fish from the oven. Garnish and serve while it is still warm. The tomatoes should be juicy and bursting. The feta should be soft and creamy.