The crossword solutions for the term 'stew staple' are PEA, which is a three letter word. Peas are a type of legume that are widely used in many dishes, including stews. They are a popular vegetable due to their versatility and nutritional value, providing a good source of protein, fiber, vitamins, and minerals. Peas are also a common ingredient in many traditional stew recipes, making them a staple in many households.