Ingredients

1 puff pastry sheet (from a 17 1/2-ounce package), thawed
1/2 cup whole-milk cottage cheese
1/4 cup sour cream
1/4 teaspoon salt
1/4 teaspoon black pepper
6 bacon slices (6 ounces), cut crosswise into 1/2-inch pieces
1/3 cup packed thinly sliced onion
1 tablespoon freshly grated Parmesan

Directions

Put oven rack in middle position and preheat oven to 400 degrees. Roll out pasty on a lightly floured surface with a lightly floured rolling pin into a 12-inch square, then transfer to a large baking sheet.

Blend cottage cheese, sour cream, salt and pepper in a blender until smooth. Cook bacon in a 10-inch skillet over moderate heat, stirring occasionally, until it just begins to brown, about 5 minutes. Bacon should be tender, not crisp. Remove from heat.

Spread cheese mixture evenly over pastry, leaving a 1-inch border all around. Scatter bacon and onion on top, then sprinkle with Parmesan. Bake until pastry is golden brown, 20-25 minutes. Cut into 36 pieces and serve warm.