1Heat vegetable oil in a skillet over medium-high heat. Add diced onion and cook 3 minutes until softened.
2Add ground beef and cook, breaking it apart with a spoon, until browned and cooked through, about 6 minutes. Drain excess fat if needed.
3Stir in minced garlic and cook 1 minute until fragrant.
4Add cumin, chili powder, paprika, oregano, salt, and black pepper. Stir to coat and cook 1 minute.
5Add refried beans and mix until combined, breaking up any clumps. Cook 2 minutes.
6Remove from heat. Warm each flour tortilla in a dry skillet or over a flame for 10 seconds per side until pliable.
7Lay a warm tortilla flat. Spoon about 3 tablespoons of beef-bean filling down the center. Fold in the sides, then roll tightly from bottom to top. Place seam-side down in a greased baking dish. Repeat with remaining tortillas and filling.
8Preheat oven to 350°F.
9In a saucepan, combine canned diced tomatoes, tomato paste, beef broth, 0.5 tsp cumin, 0.5 tsp chili powder, and salt and pepper to taste. Bring to a simmer over medium heat and cook 5 minutes, stirring occasionally.
10Pour red chile sauce evenly over the burritos. Sprinkle shredded cheddar cheese on top.
11Bake 25 minutes until the cheese is melted and bubbly and the sauce is bubbling at the edges.