Preparation
Place meat on skewers. Preheat grill or grill pan to medium-high heat.
Heat 4 tablespoons EVOO in a small pan over medium-low heat. Add butter and melt. When it foams, add anchovies and melt them in. Add garlic and chilies, and stir 2 minutes; remove from heat.
Heat 4 tablespoons EVOO in a small pan over medium-low heat. Add butter and melt. When it foams, add anchovies and melt them in. Add garlic and chilies, and stir 2 minutes; remove from heat.
Coat onions and tomatoes with 1 tablespoon EVOO and grill onions for 12 minutes until charred at edges and softened; grill tomatoes 5-6 minutes to mark and blister.
Grill meat skewers for 2 minutes on each side, basting them with the anchovy butter.
Douse the bread in remaining butter and grill.

