Lentil Sloppy Joes

I adapted this recipe from one I found on Chocolate Covered Katie.  My kids love it and I think it tastes so much better than regular sloppy joes!

1/2 onion, diced
3 cups cooked lentils
1 tbsp minced garlic
1 1/4 tsp chili powder
1 tbsp ground cumin
1/2 tsp salt
3/4 tsp cinnamon
1 stevia packets, or 2 tsp sugar
14 oz tomato sauce
up to 1 cup water
1 tbsp apple cider vinegar
2 tbsp soy sauce

Sauté the onion and garlic in oil until onion is translucent. Add lentils and spices, stir, then add all other ingredients and cook uncovered (stirring occasionally) until thick like sloppy joe filling.  Makes about 5 cups.  Serve on rolls with spinach, tomatoes, cheese, and whatever else you like!