I'd rather use sausage than bacon for biscuits, but it's getting harder to find good pork sausage for the gravy. The last time I cooked up a well-known brand, it was so lean I might as well have been frying ground turkey. I actually had to grab some cooking oil to keep it from burning. !@#$...
But I think you have the answer: next time I'll mix sausage and bacon together. Normally I'd just add some bacon grease. But in 25 years of marriage, I've never managed to train the wife to stop pouring nasty stuff into the coffee can I keep by the stove to drain bacon into....
I keep a glass jar of bacon fat in the fridge. What a cooking staple it can be. And because it is out of sight it is hard for others to mix other things into.