INGREDIENTS
1
boneless chuck, boneless roast
1
Romaine heart
1
Garlic clove, large
1/2
Sweet onion, medium wedges
2
Thyme, sprigs
1/3 cup
Mayonnaise
1
Black pepper, Freshly ground
1
Kosher salt
2 tsp
Canola oil
4
Ciabatta rolls
1/4 cup
Red wine, dry
1
jar Giardiniera, for serving, optional