Here in Southern California I've purchased all kinds of summer squash in the supermarket: zucchini, a smaller variety called Mexican squash, yellow crookneck, pattypan. In the late fall they usually carry both carving pumpkins and eating pumpkins (called pie pumpkins or similar).ere in Southern California I've purchased all kinds of summer squash in the supermarket: zucchini, a smaller variety called Mexican squash, yellow crookneck, pattypan. In the late fall they usually carry both carving pumpkins and eating pumpkins (called pie pumpkins or similar).