In a large bowl, combine seasoning and water. Using your hands, crumble in turkey and mix well. Press into Rectangular Steamer. Cover and microwave on high for 6–8 min.
Meanwhile, peel and dice sweet potato, chop tomato, and slice avocado.
Remove turkey from steamer and place on cutting board.
Rinse steamer; add sweet potatoes. Cover; microwave on high 4–6 min.
Meanwhile, thinly slice meat.
To serve, portion meat in lettuce leaves and top with sweet potatoes, tomatoes, and avocado. Serve salsa on top, if desired.