Preheat oven to 400°

Cut peppers, tomatoes, and onions and place on a parchment-lined baking sheet

Cut top off of garlic, encase in foil, add olive oil and salt, and crimp shut

Roast baking tray and garlic packet for about 40 minutes until vegetables have a slight char on them

While vegetables are roasting, add cilantro, paprika, cumin, oregano, red wine vinegar, lime juice, and salt to blender

When vegetables are done, remove, add to blender, and blend until desired texture is reached

Flavor improves considerably once mixture is allowed to cool