Main Dishesclosetcooking
Roast Beef Sandwich with Caramelized Onions and Grainy Mustard, Horseradish Mayo
The best part of the roast beef dinner might just be in using the leftovers to make roast beef sandwiches! Tender roast beef with sweet caramelized onions and the bite of a touch of horseradish.
👥 4 Servings⏱️ Prep & Cook: 1h⏳ Prep: 10 min🔥 Cook: 50 min👤 kevin📖 closetcooking
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- pan
📝 Preparation Steps
1
Heat the oil in a pan over medium heat.
2
Add the onions and water and cook, covered, until completely tender and caramelized and golden, about ⏱️ 40-50 minutes, adding more water as needed.
onion, sliced4 cups
3
Mix the mayo, horseradish and mustard.
horseradish1 tablespoon
4
Assemble sandwiches and enjoy!
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