Spanakopita-Inspired Spinach and Feta Puff Pastry Triangles

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-06-07 · Updated 2026-06-07

Flaky puff pastry envelopes a savory filling of spinach, feta, onion, and herbs for a delightful Greek appetizer or snack. This greek-inspired vegetarian ready in about 45 minutes pairs crumbled feta cheese, finely chopped small yellow onion, minced garlic clove for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 10 oz, thawed and squeezed dry frozen chopped spinach
• 1 cup, crumbled feta cheese
• 1, finely chopped small yellow onion
• 1, minced garlic clove
• 1 tbsp olive oil
• 2 tbsp, chopped fresh dill
• 2 tbsp, chopped fresh parsley
• 2 large, beaten eggs
• 2 sheets, thawed frozen puff pastry sheets
• 1/2 tsp salt
• 1/4 tsp black pepper

Instructions

1. Step 1: Preheat oven to 400°F and line a baking sheet with parchment paper.
2. Step 2: Heat 1 tbsp olive oil in a skillet over medium heat. Add 1 finely chopped yellow onion and cook, stirring, for 4 minutes until softened. Add 1 minced garlic clove and cook for 30 seconds until fragrant.
3. Step 3: Stir in 10 oz thawed and well-drained chopped spinach, 2 tbsp chopped fresh dill, 2 tbsp chopped fresh parsley, 1/2 tsp salt, and 1/4 tsp black pepper. Cook for 2 minutes until excess moisture evaporates, then remove from heat to cool slightly.
4. Step 4: In a mixing bowl, combine the spinach mixture with 1 cup crumbled feta cheese and 2 beaten large eggs, mixing well.
5. Step 5: On a lightly floured surface, roll out 2 sheets thawed puff pastry to smooth edges. Cut each sheet into 6 squares.
6. Step 6: Spoon about 2 tbsp of the spinach and feta filling onto each square's center. Fold each square into a triangle by bringing one corner to the opposite corner and press edges to seal.
7. Step 7: Place triangles on the prepared baking sheet and bake for 20-25 minutes until puffed and golden brown. Let cool for 5 minutes before serving warm.