Boiled/steamed/poached eggs? Pretty unpretentious, low fat, good protein percentage, simple, easy, inexpensive.
Chicken breasts can be prepared in numerous low-fat ways. Sunset magazine's pepper steamed chicken is a favorite here and a nicely poached piece of chicken can be something very nice. There are many recipes and techniques for poached chicken.
Apple cider braised turkey thighs? I've had good results with that and my guests have liked the dish.
Over the years I've been making variations of turkey/bean chili, sometime with little or no oil. Pretty simple, add herbs and spices to taste.
Variations of the Native Americans' Three Sisters Stew might be worth considering.
I'd be happy to send you these and other similar recipes.