In a small bowl, whisk together goat cheese, honey and lemon zest. Mix well.
Spread the goat cheese mixture on 4 slices of bread, top with 1½tsp of fig preserves and ½tsp of the chopped basil. Top with the other bread slice and spray lightly with cooking spray.
Heat a nonstick pan, place the sandwich on the pan and put a cast-iron or other heavy pan on top. Cook the sandwich for about 2~3 minutes per side or until the bread is nicely toasted. Repeat with the remaining sandwiches. Serve warm with a sprinkle of powdered sugar.