I saw this recipe on a cooking show on Brazilian TV, it looked really
tasty:

Broil bell peppers until blisters start to form. Put them in a paper bag
and let cool. Remove skins and seeds. Place bell peppers, tomatoes,chili,
salt , pepper, garlic,lemon and nuts in food processor or blender and run
the machine to a paste. Start adding oil through the feed tube to a thick
sauce. Serve over pasta.