Anyone have any tips on getting a lazy cat to get her groove on?

I could use some help with this issue...

My almost 2 year old cat, Cassidy, is extremely laid-back. And, unfortunately, that relaxed attitude translates to laziness. She is about 1-1.5 pounds over where she should be physically and I am trying, with assistance from my vet, to get her to lose that weight and then mantain.

I guess I should begin by telling you what her typical routine is. She is fed a 75% wet, 25% dry diet. All of my cats are fed on a schedule and eat only from their own bowls. Cassidy gets 2 ounces of wet in the morning, 2 ounces of wet in the afternoon, and an ounce in the evening along with 1/8 cup grain-free dry (TOTW). She has about a million toys, other kitties she could play with, lots of places to scratch and climb (including a cat tree), and I play interactively with all of the cats at least 3-4 times per day for a minimum of 10 minutes each time (usually more like 15-20). However, despite all the enticing in the world, Cassidy does not partake in most of the activity.

We have stuffed toys, we have balls, we have furry mice, we have toys filled to the brim with catnip, we have wands, we have balls running on tracks, we have laser pointers, and we have Da Bird. I know there's even more, but I can't even name everything. She ignores the great majority of her toys, but will play with them from time to time. The laser will get her attention for a couple of seconds and Da Bird will catch her eye for about 2-3 minutes. But, even then, she swats at her toys from her spot...laying down . She really is just a lazy girl...

So, what to do? I'm working on switching up some of her wet food to grain free foods in the hopes that it'll help her lose some weight. But, she still needs exercise. Any ideas on how to get a stubborn, overly relaxed cat to play and get her cute little butt in gear?! I (along with a begrudging Cass) would be most appreciative!

Thanks for all the replies. I'm hoping some of the suggestions can get my Cassidy up and moving instead of being her lazy-bones self.

As far as the calories in what I'm feeding her and the type of food I'm feeding, everything I've done has come directly from the vet. All of my cats are on a grain-free dry kibble (Taste of the Wild) and also get wet food daily. It breaks down to about 75% dry and 25% wet. The only reason they are still on some dry is that they did not acclimate well to the all-wet diet. It's also for scheduling reasons. While I'm typically home and able to feed them on a schedule, there are some circumstances where they'll need to eat dry. That is why I bumped them up to a good quality, grain-free kibble from what they were eating before (they've been on TOTW now for a couple of months). The wet food my others eat is not typically grain-free as they won't touch it, but it is a high quality wet. Cassidy, however, I'm trying to switch over to entirely grain-free wet as she will eat it (and everything else, so it seems!) without a second thought! She is getting mostly TOTW wet, Wellness CORE, By Nature 95% Meat, Natural Balance, some EVO, and, just recently, ZiwiPeak. The vet feels she's okay food-wise, at this point, but wants to see her getting some exercise so that she can lose that pound or so and then maintain. I should also mention that she's not obese, she's just not quite where she would be best off long-term...

As for toys...the kitties don't have access to all their toys at once. I take away at least one and replace it with a different toy every couple of days. They have different toys upstairs and downstairs and I try to change them up frequently as well as play with them individually to boost their enthusiasm and keep them interested. I only have a handful of non-interactive toys out at a time, but the kitten finds the "hidden" ones and brings them out from time to time only to "hide" them again. It makes limiting the toys kind of difficult, but I can try to cut down and see if that gets her interest piqued. I do what I can with the interactive toys, but she just swats at them from her seated position. And, if I move the toy in an effort to get her up and moving, well, that never ends well as she decides she'd rather sprawl out and watch me than go for the toy. But, again, there's always room for improvement and I appreciate the suggestions.

I LOVE the idea of making her work for her kibble. I can easily feed her in the spare bedroom away from the other cats. And, I'd have fun putting her dry food all about the room so that she needs to go on a scavenger hunt to get her fill. She's definitely food motivated and that sounds like it'll work. I can also put her wet food at the top of the cat tree so that she needs to climb and jump up to get to it. Any activity, in my book, is good activity. And, those ideas are ace!

Since the cats are fed on a schedule, there's not much lazy eating happening. The other cats eat quickly since they know Cass will go after theirs if they're not careful and she would inhale hers if she could! I will keep an eye on it, though. As for taking her for a walk, she's not into the harness and leash. In fact, it terrifies her. I can, however, see if holding some treats (or, rather, some of her dry kibble) and walking up and down the steps could get her moving some. The only time she's not lazy is when there is food around!

Her weight is just a piece of the puzzle. She's in excellent health otherwise and really isn't in danger where her weight is right now. But, I want her to be healthy for a long time to come and so a small weight loss and some added exercise could only be of benefit. I love my girl...she's my baby...and I just want her to have the best chance at a happy, healthy, and long life.

Thanks again for the ideas and suggestions. And, please, keep 'em coming!