Seafood stew minus tomatoes and dairy?
Look for Asian recipes. Almost all of them have a mixed Seafood Stew/ Soup. Most with out Dairy or Tomatoes.
Here are a few to get you going
Thailand's Tom Yum Talay (uses fresh Tomato as a garnish just skip it.)
Vietnam has a bunch with and without noodles, Phở tôm. (other seafood can be added)
I'm thinking of the following:
Saute shallots, fennel (and celery if you want) in olive oil
Add minced garlic, and thyme
pinch of saffron
mussels and/or clams - steam
add extra water or clam juice if needed
poach other seafood
season to taste
thicken with roux or add potatoes at the very beginning
or... white beans!!
I'm hungry now!
My DH is also sensitive to tomatoes. I often substitute red peppers (sometimes roasted, sometimes not) for tomatoes in recipes and it works just fine. The only problem is when his sister is visiting... she is sensitive to bell peppers! Anyway, here is my fish stew recipe, for the tomato paste (which in this amount is OK for my DH, its not a true allergy) I would recommend substituting some pureed roasted red pepper:
1 onion, chopped
1 shallot, minced
2 cloves garlic, minced
2 ribs celery
1 fennel bulb, chopped
½ red pepper, chopped or 1 large tomato
1 cup wine
4-5 cups fish stock or a mixture of clam juice (1-2 bottles) and water
2 tablespoons tomato paste
1 teaspoon fresh thyme
½ teaspoon saffron
1 lb mussels
½ lb Shrimp
1 ½ lbs fish fillets – 1 ½ inch chunks, seasoned
1 ½ tablespoons herbs
Sauté onion, shallot, garlic, celery in a bit of olive oil. Add fennel, red pepper or tomato, stir, then add wine. Let reduce a bit, and add remaining liquid, tomato paste and thyme. Cook for 10-15 minutes. Then add mussels and shrimp. Cook a few minutes, add fish, cook a few more minutes until all mussels are open. Add remaining herbs, serve on or with garlic toast (aioli optional).
I don't believe I've ever made seafood stew with tomatoes and/or cream (or cheese for that matter).
Start with good fish stock, then add some aromatics and veggies like onions, celery, carrots, ginger, a bit of minced garlic, and then add your seafood of choice ..
Or you can just rely on past Chowhound expertise .. http://chowhound.chow.com/topics/780470
red or green curry
west indian curry
saffron, paprika, thyme, garlic and onions
peruvian seafood stew- some online recipes don't call for tomato or dairy