Am I the only one whose first thought was "bacon"??
Some thoughts... not technically "protein/fat meals" but hopefully enough with the above suggestions to get you thinking.
Bacon on everything - salad, steak, chicken, sausage...
cheese on everything - melt it on chicken, on vegetables, in eggs...
nuts - 3oz is about 450 calories, and that's about 2/3 cup. really easy to eat at least that much in a day.
peanut butter. Just dig it out of the jar & eat it plain. What? It's good

avocado - cut it in half & eat each half with a spoon

well-marbled steak & salad
a plate of sausages and a salad with full-fat dressing
a big plate of buttery, hot-saucy buffalo wings (unbreaded of course)
burgers made out of 80% lean ground beef
use more oil in your stir fry
use peanut sauce in stir fry
add peanuts to stir fry
use coconut milk in your shakes or make a thai curry with full-fat coconut milk
homemade macaroons (splenda, coconut, vanilla, egg whites)
chocolate mousse made out of whipping cream & cocoa powder for dessert
full-fat cottage cheese alongside a steak & salad with ranch
full-fat yogurt (plain, no added sugar) after a meal
ranch dressing on a chicken salad
olive oil shots (kidding ...unless that's your thing

)
cream cheese spread onto turkey lunchmeat & rolled up as a snack