Here is a list of fatty foods:
Greek Gods Yogurt (regular, not low fat)
Eggnog
2 ounces cheddar or havarti cheese (in omelet or grilled cheese sandwich)
Soft cheeses like Brie and cream cheese (read label)
Pate (read label for fat grams but 1/2 of a pkg did it for me)
Bratwurst (2) (read label)
Egg, toast and lots of butter, bacon, berries in heavy whip. cream (eat all)
Peanut butter (on apples, on bread, on crackers, etc.)
Nuts
Ice cream
1 medium avocado
If you don't have quite enough fat in your food choice, eat it and also drink some whipping cream, add butter, add mayonaise, etc.
Also, here is a link to a thread with many fatty foods listed. Scroll down to 80mecheng's very long post with many, many fatty foods on it:
http://www.medhelp.org/posts/Hepatitis-C/Are-these-fats-okay/show/1694773