When I'm pregnant, I have a hard time with heartburn, and tomato products make it even worse.  Worse still is the fact that I cook with tomatoes probably 5 times a week or more.  It seems that we are a tomato eating family - spaghetti, chili, chili spaghetti, soups, casseroles, etc.  One trick that works is to put a pinch of baking soda in with the tomatoes, especially in chili and spaghetti.  It gets foamy there for a while, but when the foam is over, I am better able to handle my beloved tomato products.  Even though I'm not pregnant now, I still use this trick, as it just seems to help the meal "sit" better.  Not to mention DH's gratitude when he doesn't have to sit up refluxing supper.

It's simple, but it works for me! :)