What Mom used to call "Swiss Steak" was simply dredged in flour, seared on the stove top, then baked (covered), low and slow.  It sort of made it's own gravy.  Sometimes she'd actually make gravy from the drippings in the pan.

The only thing I've ever done with them is to 'Swiss' them. 

I cut it up into managable, serving sized pieces, then pound to tenderize a bit, dredge in seasoned flour, brown a bit, saute some onions in there too if you like, then put in a Dutch oven or crock pot.  Deglaze the pan with some red wine and add that to the pot too along with a little more liqid of your choice, more wine, broth, water, it'll all work out.  Simmer that low and slow till it's falling apart.  Am hour or a little more will do it easily in most cases, but it can simmer for a lot longer too.  Mushrooms are good in there too, I usually brown them a bit and add while I'm thickening the gravy towards the end of the process because I don't like them cooked for too long.

I do it usually as 'baked steak' as it's called here (some use cubed steak too). Works great for deer steaks also. Flour and brown, add to a greased or sprayed baking dish. Make gravy or if you are not proficient at gravy, use gravy from a jar, made from a packet, etc. Also very good is cream of mushroom soup with or without a packet of dry gravy mix. Dump the gravy on the browned steaks (make sure a little gets under the meat). Cover tightly and bake at 325 or so for 75 to 90 minutes or until the meat is fork tender. You can add sauteed onions, mushrooms, whatever also. Good stuff. Mashed potatoes and green beans go with LOL.

The other thing I do with round steak is cut in thin strips and make Pepper Steak (Crockpot Pepper Steak recipe is in Just Recipes).

dede

My ex MIL always made what she called Pea Gravy with roundsteak.  Brown it up, put in dutch oven with a can of peas, a can of stewed tomatoes, some onion or whatever seasoning you like.  Cook in oven for an hour or so until meat is done.  Take the meat out and thicken what is left in the pan — peas and tomatoes all mixed and cooked up.  This is the gravy for your mashed potatoes.  I turned my nose up at it at first, but it was VERY VERY good!!!!