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I knew last night we'd be rushed for dinner and I'm also on a kick to use things up in my freezer, so this recipe fit the bill! I was not disappointed! They made a quick and tasty weeknight supper. Like Shelby Jo I used frozen garlic toast, and that worked great. Our small town deli was closed when I went to the store, so I used Hillshire Farms packaged roast beef and only made 4 sandwiches, so I played with the amounts some. I used 8 oz of the roast beef for 4 sandwiches, but a full 1/2 lb of mushrooms and the 2/3 cup onion since I am a nut about mushrooms and onions! I also used Colby Jack slices since they didn't have plain Colby sliced. Easy and straightforward to make on a harried night. Served with tater tots and green beans. Will be making again for sure! Thanks for sharing Shelby Jo!!!

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DeniseBC June 30, 2010

I used leftover prime rib roast slices for this and homemade garlic bread. Oh my gosh, it's delicious and was marvelous last evening for dinner. Loved the onion/mushrooms and I think I'll be using that for other things. Super easy and super man pleasing. Houston, we have a keeper!

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Annacia March 12, 2012

I used Steak-ums instead of roast beef. After layering the meat, onions/mushroom I spread a layer of cheese dip on top and then added a piece of mozzarella cheese. Good sandwich.
Made for 2012 Zaar Cookbook Tag game

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Catnip46 January 29, 2012

This made for a super easy and super tasty supper. I used a garlic bread loaf but found I did not need the whole pound of roast beef (I probably used about 3/4 of it). I had to use Colby Jack, since that's all I could find. The onion and mushroom mixture was great and really added a special touch. I will definitely be making this again. Made for PRMR Recipe Tag Game.

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JackieOhNo! January 16, 2012

We really enjoyed this fun recipe! I didn't need the whole amount of roast beef -- probably only about 1/2 pound and 4 slices of colby cheese but used the whole amount of onions and mushrooms! Served with tossed salad and had popsicles for dessert for a fun and easy meal! Thanks for sharing!

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ellie_ October 19, 2011
Garlic Roast Beef Sandwiches