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Caramelized Onion Meatloaf Sandwiches

Caramelized Onion Meatloaf Sandwiches

with Potato Wedges & Horseradish Dijonnaise
4.5(15.6K)Review Summary
Recipe Development Team
Recipe Development TeamUpdated on January 29, 2026
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Calories
1060 kcal
Protein
36g protein
Difficulty
Hard
Allergens:
  • Soy
  • Wheat
  • Eggs
  • Milk
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

1 teaspoon

Wasabi Paste

12 ounce

Potatoes

1 unit

Onion

10 ounce

Ground Beef

1 unit

Chicken Stock Concentrate

4 slice

Sourdough Bread

(Contains: Soy, Wheat)

1 unit

Ketchup

4 tablespoon

Mayonnaise

(Contains: Eggs)

¼ cup

Panko Breadcrumbs

(Contains: Wheat)

1 teaspoon

Dijon Mustard

1 teaspoon

Garlic Powder

Not included in your delivery

1 tablespoon (tbsp)

Butter

(Contains: Milk)

¾ teaspoon (tsp)

Sugar

1 tablespoon (tbsp)

Cooking Oil

/ per serving
Calories1060 kcal
Fat61 g
Saturated Fat17 g
Carbohydrate86 g
Sugar14 g
Dietary Fiber4 g
Protein36 g
Cholesterol165 mg
Sodium1170 mg
Trans Fat1.5 g
Potassium830 mg
Calcium40 mg
Iron6 mg
Due to the different suppliers we purchase our products from, nutritional facts per meal can vary from the website to what is received in the delivered box, depending on your region.
Baking Sheet
Large Bowl
Large Pan
Small Bowl

Cooking Steps

Prep
1

• Adjust racks to top and middle positions and preheat oven to 425 degrees. Wash and dry produce. • Cut potatoes into 1⁄2-inch-thick wedges. Halve, peel, and thinly slice onion. Mince a few slices until you have 2 TBSP (4 TBSP for 4 servings).

Roast Potatoes
2

• Toss potatoes on a baking sheet with a drizzle of oil, salt, and pepper. • Roast on top rack until browned and tender, 20-25 minutes.

Form & Bake Meatloaves
3

• Meanwhile, in a large bowl, gently combine beef*, panko, garlic powder, stock concentrate, minced onion, half the ketchup, salt (we used 1⁄2 tsp; 1 tsp for 4 servings), and pepper. • Form beef mixture into two 1-inch-tall loaves (four loaves for 4); place on a second baking sheet. Brush tops of meatloaves with remaining ketchup. • Roast on middle rack until cooked through, 15-20 minutes.

Caramelize Onion
4

• While potatoes and meatloaves cook, heat a large drizzle of oil in a large, preferably nonstick, pan over medium-high heat. Add sliced onion and cook, stirring occasionally, until browned and softened, 8-10 minutes. • Add 1 tsp sugar (2 tsp for 4 servings) and a splash of water. Cook, adding more splashes of water as necessary, until onion is caramelized and jammy, 2-3 minutes more. Season with salt and pepper. • Turn off heat; transfer onion to a small bowl. Wipe out pan.

Toast Bread & Mix Sauce
5

• Heat 1 TBSP butter in same pan over medium heat. Add bread and toast until golden brown, 2-3 minutes per side (add more butter and work in batches as needed). • While bread toasts, in a second small bowl, combine mayonnaise, half the wasabi (use less if you’re heat-sensitive), half the mustard, and ¼ tsp sugar (all the wasabi, all the mustard, and ½ tsp sugar for 4 servings). Season with salt and pepper if needed.

Assemble & Serve
6

• Lay toasted bread out on a cutting board. Spread half the bread slices with caramelized onion; spread remaining bread slices with sauce (save some for serving). • Cut each meatloaf crosswise into four slices; fan out slices over bread topped with caramelized onion. Close sandwiches and cut in half. • Divide sandwiches and potato wedges between plates. Serve with remaining sauce on the side for dipping.

Customer reviews

Review summary

Updated on Dec 2025
  • Flavor: Many loved the caramelized onions and horseradish dijonnaise sauce, which added a delicious pop of flavor to the meatloaf 🍲.
  • Ease of prep: Some found it quick and easy, while others felt it was more time-consuming than expected with multiple steps.
  • Suggestions: Consider adding cheese for extra flavor; toast the bread separately to prevent falling apart when assembling.
  • Portions: Generous servings; some found it very filling, with enough for leftovers.
  • Texture: A few noted the meatloaf was crumbly; adding an egg as a binder could help it hold together better.
AI-generated from customer reviews