I am in the same boat my wife always cookes meat heavy meals, roast, fried chicken, fried pork chops, chicken fried steak,etc. When I cook I try to make something that you can have with or without meat. We eat a lot of mexican food so I just use refried beans or beans and rice in place of the meat.
Have you tried any of the meat substitutes? My favorite so far is Quorn, you can buy it in little strips that look like chicken. I have stir fried it and served it as chicken tacos and my family could not even tell it was not meat. I ordered some TVP from the health food store and I will be picking it up today. This will be my first try with it none of the stores near me carry it.
I've found without question that the best way to lead others to a more plant-based diet is by example - to lead with your fork, not your mouth. ~Bernie Wilke