Tacos (from Deceptively Delicious by Jessica Seinfeld)

1 lb. ground beef or turkey
1 14-oz. can crushed tomatoes, with their juice
1/2 cup sweet potato, carrot, or butternut squash puree
1/2 packet taco seasoning
1 pkg. taco shells
1/2 cup shredded cheese

Toppings
1/2 lb. cherry tomatoes, quartered
1/2 cup corn
1/4 cup sour cream
3 large leaves lettuce, thinly scliced crosswise
1/2 small avocado, pitted, peeled, and sliced
1 small red pepper, finely sliced

Cook meat in large nonstick skillet. Sitr in the tomatoes and their juice, vegetable puree, and seasoning mix. Reduce the heat to low and simmer until the meat is no longer pink and the mixture begins to thicken, 10-15 min. Preheat the oven to 325. Fill the taco shells with the meat mixture and sprinkle with cheese. Stand the shells in a baking dish and bake until the cheese melts, 5-10 minutes. Add your favorite toppings.