1 lb (500 g) lean ground beef
2 1/2 cups (625 mL) hot water
1/2 cup (125 mL) milk
1 box Hamburger Helper* Lasagne
1/2 tsp (2 mL) dried oregano leaves
1/4 tsp (1 mL) garlic powder
1 small tomato, coarsely chopped (about 1/2 cup/125 mL)
1 small bell pepper, coarsely chopped (1/2 cup/125 mL)
1 small zucchini, thinly sliced (1 cup/250 mL)
1 cup (250 mL) shredded mozzarella cheese