Potpie veggies is a term used to describe the vegetables that are typically used in potpie recipes. The most common vegetables used in potpie recipes are peas, which is a four-letter word that can be used to complete the crossword puzzle. Peas are a type of legume that are high in protein and fiber and are often used in soups, stews, and casseroles. They are also a popular ingredient in many other dishes, such as salads, stir-fries, and even desserts.