Sloppy Joes
3 tablespoons olive oil
1 medium onion, finely diced  
1 medium bell pepper, finely diced  
1 pound ground beef  
One 15-ounce can diced fire-roasted tomatoes
One 15-ounce can kidney beans, drained and rinsed  
1/4 cup tomato paste  
2 tablespoons apple cider vinegar  
1 teaspoon brown sugar  
Kosher salt and freshly ground black pepper
4 hamburger buns  
Instructions:
Heat the olive oil in a large skillet over medium heat. Add the onions and bell peppers and saute until softened, about 10 minutes. Add the beef, breaking it up with a wooden spoon, and cook until browned, 3 to 5 minutes. Add the tomatoes, beans, tomato paste, vinegar, brown sugar, and some salt and pepper, and cook until slightly thickened, 10 to 15 minutes.
Serve warm on the hamburger buns.
