I'm not a weight-loss expert, but I am realistic, down-to-earth and have my own weight journey. Now, I'm sure someone may post after me bashing the Special K diet because it isn't ideal. BUT, like I said, I'm unapologetically real. I have done the Special K challenge before (substitute two meals per day with Special K cereal or a SK bar, etc.) and you'll either lose 6 lbs in two weeks or go down a jeans size in 3 weeks. And you know what? It WORKED for me.
Currently, I am thinking about trying to substitute a few meals here and there with Kix cereal. I think the important thing to remember is that this isn't a permanent fix. But it could be a great jump-start. Plus, it's definitely better for me if I'm eating cereal for a meal instead of fast-food.
The only thing is, with the hysterectomy, I'm not sure if you should do anything too dramatic with your diet. I've never had a hysterectomy before, but I know my mom was really exhausted after hers. So, I hope you are feeling well and you should probably eat lots of vegetables with iron.
Honestly, the best thing I could ever recommend for weight loss is positive thinking. Best wishes!