Preheat the grill to medium and lightly spritz with the oil from an oil atomizer canister. Grill over direct heat for 2 minutes or until just lightly toasted.
Transfer to a baking sheet and top with ricotta, pear, blue cheese, and thyme. Return to the BBQ and continue to bake for 3 to 4 minutes until the cheese starts to very gently melt. Sprinkle with walnuts and honey.