I really want to cook but I'm so burned out on all the dishes and clean up after. How do I get out of this cooking slump?

I'm a single mom and I do all the cooking. I love cooking, but lately I'm just so sick of making a meal and then spending an hour cleaning up. I get up at 5:30 AM and don't get home until 6:00 PM and I'm always the one doing the dishes, and clean up afterwards. I feel like I just can't catch up. I'm worried that my grocery bill is going to go up If I don't cook anymore, but my sons love the food I make and I don't want to stop. I just want to be able to enjoy cooking again without feeling so burned out after work. Is there anything I can do?