Sausages are one of the best quick-foods if you can find a good brand which is gluten free, egg free, and for some of us, garlic free! I've already posted my patty-sausage recipe, but for cased or link sausage, just check the sausage ingredients at your local grocery store. I have been getting frozen sausages from a local butcher and ranch-foods store. Check your area for local farmers and ranchers who may sell meat products as they don't usually include fillers.
Sausages are quite versatile and relatively quick to prepare from the frozen state. They can be eaten the normal way (with a bun), or plain with sour kraut, mustard, greens, ketchup, etc. You can chop them and add them to pasta sauce, or dirty rice, pizza... I think I'm going to try and make pigs-in-a-blanket soon.
I used Chicken Sausages with sour kraut open-faced on CF bread with some honey-dijon mustard. Next time I'd make a white sauce to drizzle over it since it was a bit dry.
Next is bison andouille sausage with wilted greens and mustard. For the greens, I used my food processor a few months ago to chop swiss chard and kale, then froze it. I did the same with some green onions and added a bit to the skillet. I threw some in the pan on high heat, added some salt, pepper, and a little butter (a tablespoon) but it doesn't need oil if you don't want to add it. The best way to flavor the greens is to cook them in the same pan with your sausage! If the greens are getting dry, add a spoonful of water and stir.