NEW Tupperware Stack Cooker System. Make a complete meal for four including dessert in less than 30 minutes! Everyone deserves hot, fresh, and delicious meals, even on nights when it seems impossible. In the Stack Cooker, meat stays moist, cakes bake up fluffy, and dips and sauces come out creamier than ever. You won’t believe this microwave magic. Set includes one ¾-qt/750 mL casserole/cover, one 1¾-qt/1.75 L casserole, one 3-qt/3 L casserole, one colander, one cone, and two seals.