I used to work at a fancy Italian restaurant. I am a skilled chef at making a number of Italian foods including pizza. I am also currently a game developer. So I am in a unique position the shed light on the similarities and differences in making a pizza and making a game.
When you make a pizza: You take exact measurements of each ingredient. You methodically do things in order in a "rote learning" style. You make the pizza the exact same way each time with as small of variation as possible from the previous pizzas you have made. You cook things the same way that a machine could if it were programmed to do so. It's similar to assembly line work. Repeat, repeat, repeat, repeat, repeat... Even a specialty order such as shaping the pepperonis to look like a dick for a bachelorette party is only minor deviations and even then you are given specifics at the request of the customer again with very detailed instructions.
When you make a game: Nothing is set in stone. Nobody hands you a recipe and says "get to work!" You start off with a blank canvas. You must draw on 3 very different skills. Writing, coding, and visual art. The coding portion can be compared to the rote stuff previously mentioned, but not the writing or visual art. I'll give you that the coding portion can be like making a pizza... The only difference is if you put bugs in the code it oftentimes causes a much bigger problem than just 1 or 2 missing pepperoni. If you put a single character in the wrong place the whole game can be broken until you fix it. The writing requires you to be able to write, but not just a linear kinetic story. You must have a branching universe with multiple choices that change can require you to build a whole new story after a choice. Have your main character select one job over another? Well... That's two whole different storylines and whole different story paths. Each is independent. As for the visuals... You must be able to visualize everything written. Be it drawing them in 2d or rendering them in 3d. You wrote something too hard to visualize? Guess what you gotta go back and change the story now... You have to create characters that are believable, but not too boring. You must create plot points and fit them together. You can't have your character be in two places at once. You must create an entire universe that your people that you created live in. You must choose every little thing about them. Hair color, eye color, alll physical things.... virgin? slut? smart? dumb? speach impediment? freckles? how do they interact with others? what are their hobbies? what is their struggle? who is their nemesis? do they have friends? do they smoke cigarettes? do they drink or do drugs? do they have a phobia? are they faithful or a cheater? You must create a past, present, and future for everyone. And the future is not set in stone and it leads to multiple endings.
So yes, making a game and making a pizza are not similar.
