Thanks for the chapter!
Is this before or after Shion got the cooking skill? If it's before then the food will qualify for the mysterious food x that will look as bad as it tastes, rate -1000 on a scale of 1 to 10, and be composed of dark matter and substances so poisonous and toxic that it's a miracle the 'food' hasn't eaten through the tableware, table, floor, bedrock, and through the earth until it reaches the center of the planet dissolving everything in it's path. If it's after then the taste will be insanely good while the appearance is so insanely bad that something a no talent hack just threw together at random would seem great. Although Dino is in great trouble for the pictures, if he remembers to remind Shion and Shuna how the pics promoted a discussion on how they looked the most ideal for being next to Rimuru there's a chance the beating will soften up a tad or the two getting distracted by arguing with each other who's better for standing next to Rimuru in which case a prompt escape is called for to avoid becoming collateral damage.