After finishing the first two quests in the chain from Rumiastrasza she has not provided any more quests since then, nor has the “daily” meal been changed. That was 20 days ago now, and I’ve checked every single day since I completed my last part of the chain.
The quests I’ve completed that are relevant are:
- All Tea, No Shadeleaf (& follow-ups): Eight-Legged Menace, Grungir the Explorer, Icy Webs, Warm Away These Shivers
- The Life of Spice (& follow-up): 10,000 Years of Roasting
The quests that have yet to show up:
- The Sea Out West (& follow-up): Rambling Delight
- Finest Fungi at the Feast (& follow-up): Future-Fresh Fungi
- Savory Seas (& follow-up): Delights to Delve For
- Hearts of Starch (& follow-up): Navigating the Leapmaize
- The Egg’s the Thing (& follow-up): Anything But a Breeze
The wowhead comments section for both the achievement “Great Gourmand of The Ruby Feast” and the NPC herself are filled with people who have been unable to receive new quests from this NPC to continue the chain for What a Long, Sweet Trip It’s Been. I’ve completed every quest I could find on The Dragon Isles, and have no idea what I would be missing if there’s something else that needs to be done to trigger the rest of the chain to show up. It seems many others are experiencing this issue as well. Given that this achievement gives a feast recipe, I felt it was important. If there’s anything else I can provide that would be helpful, please let me know.