Spray slow cooker with cooking spray.
In a medium bowl, add the cream cheese, cream of broccoli soup, and 1/2 cup milk. Stir to fully combine. Set aside.
Layer some of the lasagna noodles at the bottom of the slow cooker. Spread 1/3 of the cream cheese mixture over the noodles. Layer 1/3 of the broccoli florets of the mixture. Sprinkle 1/3 of the cheddar cheese of the broccoli. Repeat the layers 2 more times. The cheddar cheese layer will complete the top.
Sprinkle the parmesan cheese over the top of the cheddar cheese.
Pour the remaining 1 cup of milk over the lasagna.
Sprinkle the paprika over the top of the lasagna.
Cover & cook on low for 3 to 4 hours.
Allow the lasagna to set for 30 minutes.
Cut and serve!