Transfer vegetables objects from cutting board to pan
You can use a bench scraper for this sort of task:



Just push the food onto the bench scraper (you can slide the bench scraper underneath the food as well), and move it. You can see a demonstration in this article by Serious Eats. 

Depending on how your cutting board is positioned, you can also just use a knife/bench scraper to push it off the board into a bowl (e.g. if the board is on the edge of a table). 

Depending on the type of knife you're using (a chef's knife, for example), you can move the dice onto the side of the knife, but you won't have as much room as with a bench scraper. Also, you can dull your knife this way / cut yourself if you aren't careful.