Preheat oven to 400F. Slice zucchini lengthwise into 1/4-inch slices.

Grill zucchini slices for 2 minutes per side until slightly charred.

Mix cheeses, basil, garlic, salt, and pepper in a bowl.

Spread cheese mixture evenly onto each zucchini slice.

Roll up slices and place seam side down in a baking dish.

Bake for 20 minutes until cheese is melted and bubbly.