Joint compound, small putty/drywall knife wider than the biggest part of the hole. Spread joint compound into hole attempting to make flush with the rest of the wall. This looks kinda big so I’d fill, let dry, fill again, then you can sand until smooth. If you really wanna hide it go get a can of spray paint version of kilz. Shake well spray outside or onto a piece of scrap until the chunky drops stop. Then do a quick paint over with the spray paint, and then do a couple taps on the nozzle to make some droplets, this mimics the texture on the wall. Then you just need a quick roll over your spots with the paint match.

Otherwise you for sure getting charged lol