Mississippi Mud Potatoes are a hearty, crowd-pleasing side of diced potatoes tossed with a tangy-spicy mayo-sour cream sauce, loaded with two cheeses, bacon, onion and garlic. Bake until tender and golden for a comforting, indulgent dish perfect for potlucks and family dinners.
Place an oven rack in the center position and preheat the oven to 325°F (163°C). Grease a 9x13-inch baking pan with butter or nonstick spray and set aside.
In a large bowl, combine the cubed potatoes with mayonnaise, sour cream, shredded cheddar and pepper jack, crumbled bacon, chopped onion, minced garlic, salt, pepper, and paprika. Toss everything together until the potatoes are evenly coated.
Spread the potato mixture in an even layer in the prepared baking dish.
Bake uncovered until the potatoes are tender when pierced with a fork and the surface develops a golden top, about 1 1/2 hours.
Remove from the oven, scatter the sliced green onions over the top, and serve warm.