Ingredients
- 2 pounds premium ground beef (80/20)
1 tbsp good Dijon mustard
3 tbsp olive oil
1 tsp chopped thyme
3 tsp chopped garlic
1 tsp kosher salt
1 tsp freshly ground black pepper
6 oz grated Gruyere
12 small Brioche or slider buns
4 oz baby arugula
3 medium tomatoes, sliced in 1/8 inch-thick rounds
2 small red onions, sliced in 1/8 inch-thin rounds
ketchup, for serving
Description
From
Spark Recipes
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