[food/drink] Sausage means I can fly!

I recently decided to try eating meat, to see whether my stomach got accustomed to it. I have no idea whether that can even work or not (I've been vegetarian since birth except for consistent fish intake), but I'm trying. First step: things with animal fat in them, but no actual pieces of meat.

Chicken-based soup tastes really good, but upsets my stomach a little bit. Here's the odd thing: if I'm right about what various restaurants are using in their food, pork fat doesn't seem to upset my stomach (or taste particularly distinctive) but does consistently make me light-headed for a while. This is unexpected and kind of entertaining, plus scary.

Anyway, I'm looking for suggestions of grocery-store food items (soups?) that taste good and have a meat-fat base, but without meat lumps in it. Bonus scientific-method points if the item has only *one* kind of animal fat.