I've found the easiest way to maintain my macro ratios on Keto is to just drink heavy whipping cream for breakfast - it's almost pure fat, and 1/2 cup is about 400 kcal. It's slightly sweet and has little or no oily taste, so it goes down much easier than coconut oil or butter. Even when I'm adding it to coffee, I prefer it over butter.

For a quick snacky lunch, I love celery and cream cheese or, depending on what mood I'm in, celery and mayo.