Step 1

Heat butter in a skillet over medium-low heat and cook red bell pepper and yellow bell pepper until soft but not browned, about 5 minutes.

Step 2

Mix bell peppers, salami, cream cheese, Parmesan cheese, and egg in a bowl. Season with paprika.

Step 3

Dust a flat work surface lightly with flour. Unroll both puff pastry sheets and roll out to 2 large rectangles. Spread bell pepper mixture over the puff pastry, leaving a 1-inch border. Roll puff pastry up tightly like a jelly roll and place in the freezer until filling hardens, about 1 hour.

Step 4

Preheat oven to 400 degrees F (200 degrees C). Line 2 or 3 baking sheets with parchment paper.

Step 5

Remove puff pastry rolls from freezer and slice into 1/2-inch-thick slices; lay 2 inches apart on the prepared baking sheets.

Step 6

Bake in the preheated oven on the center rack until lightly browned and puffed up, 20 to 30 minutes.