You can try this with roasted butternut squash instead of pumpkin. Sunflower butter will also work in place of tahini (though tahini is probably easier to find in most stores). Three cups of beans will be about 1-1/2 regular-sized (19 oz / 540 ml) cans. You can store leftover beans in the fridge. Add them to salads or mix them in with other dishes for extra nutrition. They have a mild flavor and a smooth texture so they won't be overwhelming. You can also just mash them and spread on toast with some avocado, lime juice and salt and pepper. If you can't find cannellini beans, you can substitute cooked navy beans.