01 -
In a large skillet over medium heat, cook the ground beef and diced onion until the beef is thoroughly browned and the onion is softened. Drain excess fat.
02 -
Arrange the cubed potatoes evenly at the bottom of the slow cooker. Layer the cooked beef and onion mixture atop the potatoes. Add the drained pinto beans and diced tomatoes with their juice. If desired, add the cream of mushroom soup. Sprinkle garlic powder, paprika, salt, and black pepper evenly. Gently stir to combine ingredients carefully without breaking the potato pieces.
03 -
Cover and cook on LOW heat for 6 to 7 hours or on HIGH heat for 3 to 4 hours, until the potatoes are fork-tender and flavors meld.
04 -
Approximately 15 to 20 minutes before serving, sprinkle the shredded cheddar cheese over the casserole surface. Re-cover and allow the cheese to melt completely.
05 -
Garnish with chopped fresh parsley. Serve hot alongside crusty bread, cornbread, or a fresh green salad.