French Crepes With Spinach and Feta Recipe

Name: French Crepes With Spinach and Feta Recipe
Ingredients: 2 teaspoons (10ml) extra-virgin olive oil; 1/4 cup minced red onion (about 1/4 medium red onion); 3 ounces fresh spinach leaves (about 3 packed cups; 85g); 1 teaspoon (5ml) fresh juice from 1 lemon; Kosher salt and freshly ground black pepper; 2 ounces (57g) crumbled feta cheese; 4 cooked Basic Crepes; 1 teaspoon (5g) unsalted butter; Minced fresh herbs, such as parsley, chervil, tarragon, or chives