Simple roasted pumpkin recipe I came across on epicurious.com. Substitute the squash below for Calabaza. Calabaza is often sold already chopped into chunks in many Latin markets. This is because of the difficulty many have in chopping the whole squash. Select pieces with a fresh, moist and unblemished flesh. Soft or wet spots means the squash is beginning to spoil. The color of the flesh should be a bright orange. Whole squash are more difficult to find, but if you find one, select one that still has the stem attached and is heavy for its size. You should avoid purchasing a squash with bruises, cuts, or soft spots. Calabaza is available year round.