The orange colour of pumpkin signals beta carotene, a plant pigment that's a potent disease-fighter. And this is a meatless stew, so the total fat content is minimal. Like all good stews, this is a fine make-ahead recipe.
Butternut pumpkin is a spectacular source of cardio-protective beta carotene. Compared with other types of pumpkin, butternut pumpkin is the richest source of this nourishing antioxidant, as evidenced by the deep orange flesh. If you are unable to find butternut pumpkin, other types of pumpkin and squash are also highly nutritious.