Image from link when posting to facebook

I posted this link on facebook. https://www.littlechoicesmatter.com/food-guide/ A random picture from the blog showed up, it’s not even on the linked page.

Usually when I post a link, I’ll get a random sidebar image, but sometimes I’ll get a completely random image. Is there a way to set up a image that would always appear? One that is more branded rather than an odd recipe image?