Sauté Vegetables: Heat a tablespoon of vegetable oil in a skillet over medium heat. Add onion, garlic, and bell peppers, sauté for 5-7 minutes until softened.

Mix Meatloaf Ingredients: In a large bowl, combine ground beef, ground pork, breadcrumbs, sautéed vegetables, cheddar cheese, bacon, sour cream, milk, eggs, Worcestershire sauce, mustard, and seasonings until evenly mixed.

Combine Gently: Mix the meatloaf mixture using hands or a spatula until just combined.

Prepare Potatoes: Peel and cube russet potatoes, boil in salted water for 15-20 minutes until fork-tender.

Mash Potatoes: Drain potatoes and return to pot. Add butter, milk, sour cream, cheese, and half the bacon, mash until smooth.

Preheat Oven: Preheat oven to 350°F (175°C).

Shape Meatloaf: Transfer meat mixture to a greased baking dish, shaping into a loaf.

Top with Potatoes: Spread mashed potato mixture evenly over the meatloaf.

Bake: Bake in preheated oven for 60-75 minutes until the top is golden brown and the internal temperature reaches 160°F (71°C).

Rest: Remove from oven and let rest for 10-15 minutes.

Garnish: Slice the meatloaf and garnish with chopped green onions before serving.