Favoreats
Favoreats LLC
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INGREDIENTS
2 cups
Deli roast beef
1/4 tsp
Garlic powder
1 cup
Onion
4
Portobello mushroom caps - or 16 smaller caps, large
2 tsp
Dijon mustard
1/4 cup
Mayonnaise
1/4 tsp
Black pepper
1 tsp
Kosher salt
3 tbsp
Butter
4
slices Provolone cheese