Spinach and Green Pea Empanadas

Name: Spinach-and-Green-Pea Empanadas
Ingredients: 1 1/2 c. water; 1 tbsp. kosher salt; 3 tbsp. unsalted butter or lard; 2 tsp. sweet smoked paprika (pimentón de la Vera); 3 3/4 c. all-purpose flour; 10 oz. spinach; 1/2 c. shelled fava beans or thawed frozen lima beans; 1/4 lb. green beans; 2 tbsp. unsalted butter; 3 tbsp. extra-virgin olive oil; 1 medium onion; 2 clove garlic; 1 c. frozen peas; 2 tbsp. Chopped mint; 1 tbsp. chopped thyme; salt; Freshly ground pepper