In a mixing bowl, combine the ground beef , breadcrumbs , salt , black pepper , garlic powder , and onion powder .
Use your hands or a fork to mix gently until just combined—avoid overmixing to keep the meatloaf light.
Step 3: Assemble in the Crockpot
Grease the bottom of your slow cooker lightly with cooking spray or oil.
Place half of the caramelized onions at the bottom of the crockpot.
Shape the meatloaf mixture into a log and place it on top of the onions.
Cover the meatloaf with the remaining caramelized onions.
Step 4: Add Swiss Cheese
Sprinkle the shredded Swiss cheese evenly over the top of the meatloaf and onions. Ensure the cheese covers the surface for maximum meltiness.
Step 5: Cook Until Tender
Cover the slow cooker and cook on low heat for 6–8 hours or high heat for 3–4 hours , until the meatloaf is fully cooked (internal temperature should reach 165°F / 74°C ) and the onions are tender.
Step 6: Serve and Enjoy!
Let the meatloaf rest for 5–10 minutes before slicing. Garnish with fresh parsley or extra Swiss cheese if desired. Serve alongside mashed potatoes, roasted vegetables, or crusty bread for added satisfaction.
