Savory Puff Pastry Squares with Feta and Spinach

These savory puff pastry squares are the perfect quick snack or appetizer, loaded with creamy feta cheese, finely chopped spinach, herbs, red onion, and a hint of tomato sauce. The flaky pastry contrasts beautifully with the tangy cheese and fresh greens, making this a vegetarian-friendly crowd-pleaser. They're easy to assemble and bake, making them ideal for casual dinners, brunches, or a fancy finger food platter.