Heat 2 tablespoons olive oil in a large skillet over medium heat. Add the diced onion and 1 teaspoon salt and saute for about 5 minutes until softened and translucent.
Stir in 3 tablespoons tomato paste and 4 tablespoons taco seasoning. Cook for 1 to 2 minutes, stirring, until fragrant and slightly darkened.
Add the drained lentils and mash them a little with a potato masher. Add 1 ½ pounds ground turkey and cook for 8 to 10 minutes, breaking it up, until no pink remains. Add a splash of water if the pan looks dry.
Taste and stir in up to 2 more tablespoons taco seasoning. Cook 1 to 2 minutes more, then serve.
Notes
High in protein. Mashing the lentils before the turkey goes in helps them blend right into the meat.Keep leftovers in an airtight container in the fridge for up to 4 days, or freeze for up to 3 months. Thaw before adding to other recipes, then reheat in a skillet with a splash of water.Nutrition information is an estimate and may vary based on ingredients and preparation.