Tell HN: 0.61 USD per week for daily sprouts of grains and pulses
Soaking 718g (dry weight) of equal parts beans (black, garbanzo, mung, adzuki), brown lentils, and a double portion of hard red wheat seeds in water for about half a day, rinsing 2-3 times a day for the next few days until the radicle is long enough (this isn't rocket science), and putting half in the fridge while starting in on the rest, lasts me a whole week as the basis for the day's food (augmented with homemade kimchi, nutritional yeast, beets, apples, and zucchini recently- so, not exactly unflavored, but minimal spices and low acidity going in).
The cost, based on the five-pound bags of these seeds I bulk-order from our local food cooperative, comes out to $0.61/week.
I also find that I don't need to drink as much water throughout the day, as the seeds soak up a lot, and I add water for cooking (in the microwave, at 30% power for 10-15 minutes). GERD symptoms have subsided over the past couple months eating like this. Symptoms worsen if I eat too much at once and/or if I consume chocolate, citrus, tomatoes, maybe dairy, and coffee & alcohol (both of which I'd already given up for other reasons).
Sharing this in case it helps anyone make changes towards better health.