To make the switch work, you'll simply attach the two wires you removed from the dimmer to the new switch. If there wasn't a grounding conductor attached to the dimmer, you have a couple options for grounding the new switch.

Add a grounding conductor

You can use a length of bare copper or green insulated wire, and connect it in an approved manner to the other grounding conductors in the box. Then you'll attach the other end of your grounding pigtail to the switch. You could use a twist-on connector, crimp connector, terminal block, push-in connector, or any other UL listed product designed for this.

Adding a grounding conductor is the preferred method.

Self grounding device

If it's a metal box, you could use a self grounding device. The switch will then be grounded to the box through the attachment screw, assuming of course that the box itself is grounded (which it should be if it's metal, but don't make assumptions when working with electricity). Self grounding devices will be labeled as such, and will have a little copper doohickey around the attachment screw hole.

NOTE:

If you're attaching a grounding pigtail to the other grounding conductors in the box, make sure all the existing grounding conductors stay connected. DO NOT permanently remove grounding conductors from the bundle, they must all be connected together.

There are half a dozen ways one could do this, but I would do it this way

• Purchase 2 Lutron RF Maestros. ( The RF part is important, as they sell none RF Maestros too) ( for non dimming use MRF2-6ANS )
• One Pico wireless switch
• One Pico switch plate adapter
• One 2 gang decor plate
• Change both switches to the RF Maestro and put the Pico next to the switch that controls the recessed lights using the Pico adapter and 2 gang wall plate. (No cutting necessary).
• Program the Pico to turn on both RF Maestros and you're done.
• If using electronic or magnetic LED the Maestro will need to be compatible and same goes for the recessed lights. But since you are not dimming these you do not need to worry about that nor would you need to worry about the wattage.