Open Face Pot Roast Sandwiches (Pot roast tartines)
There is some serious flavor packed into these open face pot roast sandwiches. Thick slices of toast are slathered with herbed mayonnaise, stewed onions, leftover pot roast, and melted gruyere cheese, then topped with a pile of dark leafy greens. They are a delicious way to use up leftover pot roast and get dinner on the table in about 15 minutes.
If you are making these as part of Weekly Winter Meal Plan #2, you should have some leftover pot roast and stewed onions in the refrigerator from the nights you made slow cooker pot roast and slow cooker French onion soup.
If you don’t have those yummy leftovers in your refrigerator, simply use deli roast beef in place of the pot roast and sauté a few onions in place of the stewed onions (directions for sautéing onions are in the recipe.)
I usually serve pot roast sandwiches with salad, but French fries would be fabulous. Because, well, French fries.
Weekly Meal Plans that include Open Face Pot Roast Sandwiches:
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Pot Roast Sandwiches
- Total Time: 15 minutes
- Yield: 4 open face sandwiches 1x
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Pin RecipeDescription
Pot Roast Sandwiches are a delicious way to use up leftover pot roast and get dinner on the table in about 15 minutes.
Ingredients
- 4 thick slices of French bread, Italian bread, or sourdough
- 3/4 cup mayonnaise
- 1 tsp minced garlic
- 1/3 cup fresh parsley, chopped fine
- 1/3 cup fresh cilantro, chopped fine
- 3/4 cup stewed onions, reserved from crock pot French onion soup – OR 1 large yellow onion
- 16–20 oz leftover pot roast – OR 1 lb deli roast beef
- 8 oz gruyere cheese, sliced very thin
- 4 cups dark leafy greens, like spinach or kale
Instructions
- Preheat your oven’s broiler.
- Toast the slices of bread and lay them side by side on a baking sheet.
- Stir the garlic, parsley, and cilantro into the mayonnaise. Spread a generous layer of the herbed mayonnaise over each slice of toasted bread.
- If you have stewed onions, divide them amongst the sandwiches, layering the onions over the mayonnaise. If you don’t have stewed onions on hand, peel 1 large yellow onion and slice it into thin slices, about 1/4 inch thick. Heat 1 tbsp of olive oil in a frying pan over medium heat. Sautéed the onions in the oil until they are soft and beginning to brown. Distribute over the sandwiches.
- Layer the pot roast or roast beef over the onions on each sandwich and top with a few slices of cheese.
- Place the sheet of sandwiches under the broiler to melt the cheese. Watch carefully – the cheese will go from just starting to brown to burnt very quickly.
- Remove the sandwiches from the oven, distribute among 4 plates, and top each with a generous portion of kale, spinach, or other dark leafy greens.
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