Tsukemen with a side of aburi (frame grilled) pork belly on rice at Afuri, probably my favourite ramen shop in Tokyo. Their soup has a chicken broth base with yuzu, so it has a unique citrus flavour. You can choose sous vide chicken breast instead of pork, and also the richness of the broth, if you want a lower fat ramen. (ramen is usually very high in calories, even more than pho)
This was my first time trying their tsukemen, since it was hot that day I didn't feel like walking around with a belly full of hot soup. Their soup ramen is better though. They also have spicy soup base.
Check it out if you're in Tokyo
They have several locations, including Harajuku