1. Heat a lrg cast iron skillet over med hi heat till very hot. In batches, cook tomatoes, onions, garlic & jalapenos for 3-5 mins or until evenly blistered, blackened in spots and beginning to soften. Transfer roasted ingredien ts to a cutting board. Remove peel from garlic & stems & seeds from jalapenos. Chop tomatoes & onions into pieces. In a blender, combine roasted igredients. Cover and blend until smooth. With blender running, add up to 3 cups water through hole in the lid until sauce reaches desired consistency. Blend in lime juice & season with salt and pepper. Per 1/2 cup: 15 cal; 0 fat; 0 chol; 126 mg sodium; 3 g carb