I used 0 pt extra lean ground turkey and liked it with that. (skinnytaste.com)
Like another reviewer I subbed out beef for poultry, using 2 links of chicken chorizo (which I bought at the meat counter so they were pretty big, like 0.8 lbs) and a package of extra lean ground turkey (1.3 lbs I think). (myrecipes.com)
Try a combo of 3 ounces of extra lean ground turkey or flaked salmon, along with 1 lightly beaten egg,  1/2 cup veggies (such as minced red onion, finely chopped spinach, or shredded zucchini) and season to taste, with garlic, and fresh basil, parsley, or dill. (health.com)