Pumpkin Soup with yogurt

3 cups of baked and mashed pumpkin 1 onion , chopped 3 tablespoons olive oil 3 garlic cloves , sliced thinly 1/2 cup red cabbage , chopped finely 1 banana[...]

2 1/2 lbs pumpkin 3 tablespoons butter or 3 tablespoons margarine 1 onion , thinly sliced 1 garlic clove , crushed 3 1/2 cups vegetable stock 1/2 teaspoon[...]