This combo can also be spread on a corn tortilla, if you prefer.
Preheat oven to 375 degrees. Butter a baking sheet. Spread 2 tablespoons cream cheese on a flour tortilla (6-inch).
Halve 1/2 cup red seedless grapes lengthwise; arrange cut side up on cream cheese, pressing in gently. Sprinkle with 1 teaspoon sugar.
Bake until crisp, 15 to 18 minutes.