Slice the lemons thinly. Arrange the lemon slices on the bottom of a 9x13 baking dish.
Place the snapper fillets, skin side down, on top of the lemon slices. Brush the snapper with the pesto sauce. Arrange the cherry tomatoes around the fish.
Bake for 30 minutes, or until the internal temperature of the fish reaches 145F degrees.
Keyword gluten free, healthy, low carb, pescatarian, protein