Adapted liberally from Gourmet Makes about 30 pastries 1 tablespoon unsalted butter 1/2 cup sliced green onions 1 clove garlic, minced 1 pound fresh spinach (coarse stems removed if ‘grown-up’ spinach; baby spinach can be used in full) 3/4 pound feta, crumbled 1 tablespoon lemon juice ...