Here is an affordable food chopper that you can use to make salads and everything else with less effort. The POWWA Rechargeable Electric Food Chopper has 200ml capacity. It has a 3-blade design to chop, mince, and puree your ingredients. It has a 45W motor. It is pretty easy to clean too.
The POWWA Food Chopper lasts up to 1 months on battery after a couple of hours of charging. It has a 1200mAh battery. In the above video, I use it to make a quick salad.