Here's what I do:
Brown your sausage, drain.
You're going to use frozen dinner rolls so have them defrosting and when they're cool enough to roll out, spread them as thin as you can without making too many holes (you're gonna make a few, especially if they're extra thawed out), then spoon your sausage mixture on top and roll 'em up.
Lay them seam side down on a cookie sheet and bake till brown.
Now, my MIL gets all crazy and adds pepper and mushrooms, probably onion too. UGH! I'm a tad too picky for that but my husband loves them. She also uses frozen bread loaves vs. the dinner rolls. If you use the bread each loaf makes 8 rolls (at least that's how she divies it out).
After having them at my house one time my mom went home and made them using crescent rolls. Now you know that was good!
Whenever I'm going out of town I try to have these handy for my husband. He loves them and they're an easy dinner for him to fix for himself without too much hassle.