
If you’ve ever strolled through Costco’s prepared food section, you’ve probably spotted their famous meatloaf with mashed potatoes. It’s hearty, comforting, and a lifesaver on busy weeknights. But what if you could recreate the same homestyle flavors in your own kitchen—fresh, affordable, and just as delicious? That’s exactly what this copycat recipe delivers.
Ingredients for Copycat Costco Meatloaf & Creamy Mashed Potatoes
For the Meatloaf:
- ground beef & ground pork
- onion
- garlic
- oatmeal
- eggs
- milk
- Worcestershire sauce
- salt & pepper
- parsley
- ground mustard
- garlic powder
- onion powder
For the Glaze:
- ketchup
- brown sugar
- barbecue sauce
- vinegar
For the Mashed Potatoes:
- potatoes, peel optional
- unsalted butter
- milk or heavy cream
- sour cream / Boursin cheese
- salt & pepper, to taste
Why You’ll Love This Recipe
- Family-friendly
: A true comfort food classic that pleases even picky eaters. - Meal prep–ready
: Makes enough for leftovers or to freeze for later. - Budget-friendly
: Skip the Costco run and make it at home with pantry staples.
Tips for Success
- Don’t overmix
: Mix meat just until combined to keep it tender. - Customize the glaze
: Add hot sauce or chipotle powder for a little kick. - Make-ahead friendly
: Prepare meatloaf a day in advance, cover, and refrigerate before baking. Or triple the recipe and place two in the freezer.
This copycat Costco meatloaf and mashed potato recipe brings all the cozy, homestyle goodness you love right to your table. It’s filling, affordable, and tastes like it’s been simmering in your kitchen all day. Next time the craving hits, skip the store and whip this up—you may never go back to the pre-made version again.
EQUIPMENT LINKS
9×13 Tins pans
Hand Mixer
Immersion Blender
Mixing Bowls
Instant Pot
High quality Salt
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Copycat Costco Meatloaf & Mashed Potatoes
Ingredients
- 2 lbs beef or beef/pork mix
- 1/2 onion pulsed in food processor
- 2 cloves garlic pulsed with onion
- 1/2 cup oatmeal pulsed in food processor
- 1/2 cup milk
- 1 egg
- 2 tablespoon Worcestershire sauce
- 1 1/2 teaspoons parsley
- 1 teaspoon salt
- 1 teaspoon pepper
- 1 teaspoon ground mustard
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 cup ketchup
- 1/4 cup bbq sauce
- 2 Tablespoons brown sugar
- 1 teaspoon vinegar
- 2 pounds mashed potatoes
- 1 stick butter softened
- milk enough for consistency you prefer
- 1/2 cup sour cream or a Boursin cheese
- salt pepper and garlic salt, to taste
Instructions
- Preheat oven to 375 degrees.
- Prepare a 9x13 baking dish. I used tin foil to create a wall in the middle, maybe 3" high so food doesn't spill into each other. Spray with nonstick spray.
- To a large pot add water and potatoes. Boil until fork tender.
- Drain potatoes, add back to large pot.
- Add butter, sour cream, milk and seasonings. Use a hand mixer and mix until creamy.
- In a food processor add oatmeal, onion and garlic. Pulse until fine and looks like a rough paste.
- Add all meatloaf ingredients into a large bowl. Mix by hand or with hand mixer.
- Place mashed potatoes in half the baking dish, meatloaf in the other half.
- Mix up glaze.
- Add glaze to top of meatloaf and spread in a thin layer. Add a few dollops of butter on top of the potatoes.
- Bake until meat reaches at least 165 degrees internally and glaze has caramelized.