MCT Oil
MCT oil is amazing for greasing a pan!
Grease pans with MCT oil or coconut oil - that's my recommendation. Others will recommend Palm Shortening, too. These tropical products are far better for this purpose than olive oil, butter or ghee.
MCT oil is a refined form of coconut oil that consists of medium-chain triglycerides, thus MCT. According to Healthline.com, it can help with weight management and favors good gut bacteria. I had no idea it would be so great for preventing food from sticking to a pan!! I used it in the Flourless Baked Pancakes recipe here.