Grilled Onion Flatbread with Bacon and Arugula is basically a BLT in pizza format. With a beer-spiked cream cheese sauce and grilled onion topping, this is one unique grilled appetizer that will get any summer party started.
Peel and halve onions. Brush with oil, then sprinkle with salt and pepper.
Grill onions on the rack of a covered charcoal or gas grill directly over medium-high heat for 6 to 8 minutes, just until charred and slightly softened, turning once halfway through grilling. Cool.
In a medium bowl whisk together cream cheese, ale, Worcestershire sauce, and cayenne pepper until smooth. Chop two of the grilled onions; stir into cream cheese mixture. Season to taste with salt and black pepper. Quarter the remaining two onions; set aside.
Grill flatbreads on the rack of a covered grill directly over medium-high heat for 2 to 4 minutes or until crisp, turning once halfway through grilling. Transfer to a cutting board. Spread half the cream cheese mixture on each flatbread. Top with arugula, tomatoes, bacon, and quartered onions. Slice and serve.