Rick Bayless's Red Chile Seafood Soup

Ingredients in this Recipe

1 large white onion, cut into 1/4 inch pieces
1 lime, cut into 6 wedges, for serving
1 pound fish fillets, such as halibut, mahi mahi, or catfish, cut into 1 inch cubes
1 pound mussels, scrubbed and debearded, or 2 clams, scrubbed
1/2 cup chopped fresh cilantro, for garnish
15 ounces diced tomatoes, preferably fire roasted
2 cloves garlic, peeled
2 large sprigs fresh epazote, optional
2 tablespoon vegetable or olive oil
3 dried guajillo chiles (about 3/4 ounce), stemmed, seeded, and torn into large pieces
4 medium red skin boiling potatoes, or Yukon Gold potatoes (about 1 pound), cut into 8 pieces
6 cups homemade or store bought low sodium chicken, or fish broth
Coarse salt

See Full Recipe at Martha Stewart