Striped Bass with Onion and Cumin Sauce

This simple preparation can be made with any firm white fish.

4 6oz fillets of bass (1 inch thick)...1/4 cup fresh lemon juice...1 1b tomatoes...3 Tbl veg. oil...2 large onions, cut into 1/4 inch slices...4 garlic cloves, pressed...1 1/2 tsp ground cumin...

Place fish in glass baking dish.  Pour lemon juice over.   Season with salt and pepper. Chill while preparing sauce.  Blanch tomatoes in pot of boiling water for 20 seconds.  Drain.  Peel tomatoes.  Cut tomatoes in half, squeeze out seeds.  Shop tomatoes, set aside.  Heat oil in large heavy skillet over medium heat.  Add onions, cover and cook until soft and golden brown, stirring occasionally, about 20 minutes.  Add garlic and saute 30 seconds.  Mix cumin, then tomatoes.  simmer sauce 5 minutes.  Add fish with lemon juice and simmer until fish is just cooked through, about 10 minutes.  Using slotted spatula, transfer fish to platter.  boil sauce in skillet until slightly thickened, about 5 minutes.  Season to taste with salt and pepper.  spoon sauce over fish.