WIBTA for making dinner for everyone except my husband?

Last night I (36f) made dinner and right as I was finishing, got a text from my son (16m) that he needed a ride home from work.

While I was gone, my husband (39m) ate all of the meat that I made for tacos. Leaving my son and I without food. (Husband is stepdad)

I was and am livid. His reply was to tell me I didn’t make enough food and told my son there was lunch meat for sandwiches. He also snapped at me when I offered to order food for my son.

When I cook tonight, I will make enough for me and the kids and when my husband asks where his food is, I will direct him to the lunch meat. WIBTA for this? I know it’s petty but I’m beyond angry and am questioning why I am with this selfish man child.