Adding a few more eggs, like Ron suggested, is a great way to get a little more protein in the diet. More recent research has shown that cholesterol from our diets really has little effect on blood cholesterol, so go ahead and have a few eggs every week.
I am also a big fan of cottage cheese. I will often use it as "dressing" on spinach salads. Adds a creamy texture, a little tang, a nice protein boost, and avoids the fats in regular dressing.
Nice job on the Weight lose - you are definitely doing something right!