Boil water in a small pot. Add lentils and simmer for 15-20 minutes until tender. Strain and set aside.
Heat oil in a large skillet over medium heat and sauté onions and bell pepper for 4-5 minutes until they start to soften. Add garlic, chili powder, black pepper, salt and sauté for another 1-2 minutes.
Pour tomato sauce and remaining ingredients, including the cooked lentils, and stir until well combined.
Simmer on medium-low heat for 5-10 minutes until sauce reaches desired consistency.
Serve on hamburger buns, and enjoy!
Video
Notes
Storage TipsKeep any leftover sloppy joe filling in an airtight container. I always recommend storing leftovers in glass whenever possible, as it keeps food fresher for longer.
Fridge: Store properly in the refrigerator for up to 4-5 days.
Freeze: For longer storage, freeze for up to a month in a freezer-safe container.
Please read the blog post above for more helpful tips, tricks, and topping suggestions!