A hot, spicy, citrus-laden soup loaded down with potatoes, chayote, spinach, onions, cilantro, and a protein source of your choice. Flavor with stock. Broccoli and/or carrots added in late in the cooking to preserve their crunch.
The psychological effects of a hearty meal and the nutritional benefits are great. Make it in a big enough pot and you can keep coming back to it over 2 days, leaving you free from cooking and limiting additional dishes to mess with while sick.
Spend that time practicing self-care instead. The mental boost is considerable and lessens the awful feeling of being sick.
Also, make sure to take in sunlight, but also spend some time cozy in a dark setting. Falling into a hard habit can adversely affect your mood.
Don’t neglect grooming. A hot shower and a clean, head of hair/scalp is something people may take for granted, but I’ve had to go days without a shower sometimes and the feeling of a freshly washed head is revitalizing.
Lime, actually. Lime pairs a little better with legumes or red meats in my opinion, and pairs equally as well with pork as lemon. Lemon is a winner when paired with chicken, however.