Total Time
45 Mins
Yield
Makes about 20 3-in. squares
Photo: Annabelle Breakey; Styling: Dan Becker

How to Make It

Step 1

Preheat oven to 375°. Line a large cookie sheet with parchment paper and spray paper with cooking-oil spray (or brush lightly with vegetable oil). Lay 1 sheet filo on paper and brush lightly with a little melted butter. Sprinkle all over with 1 tbsp. parmesan. Repeat layering 5 more times (with filo, butter, and parmesan), pressing each sheet firmly so it sticks to sheet below. Lay the last filo sheet on top, brush with remaining melted butter, and sprinkle on remaining 1 tbsp. parmesan.

Step 2

Scatter onion across filo, top with mozzarella, and arrange tomato slices in a single layer, overlapping slightly. Sprinkle with thyme and salt and pepper to taste.

Step 3

Bake until filo is golden brown, 30 to 35 minutes. Cool 10 minutes, then serve.

Step 4

Note: Nutritional analysis is per square.

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