This product is a retort curry produced by Village Vanguard's in-house product planning. According to the product page, it is "thick slime-like" and the taste you are interested in is "It looks like ball slime, but it is not poisonous. It has a gentle taste contrary to its appearance."
Onions, carrots, brown rice, legumes, tomato paste, etc. are written on the raw materials, and it looks like a healthy curry.
By the way, it seems that the product contains only blue curry, so you have to do the topping yourself. I've seen a lot of slime-related products that are "cute and inedible", but it seems that some people will not be able to eat them in another sense.