The amazing New York Times Cooking staff has made a large supply of recipes available free. Many of them are designed for using what you already have.
https://cooking.nytimes.com/topics/self-quarantine-recipes
Read articles related to the pandemic
Don't be put of by the word "literary" in the title. There's a wide variety of interesting material, from what's it's like to be stuck in the house with 12-year-old twins to Dolly Parton reading bedtime stories:
https://lithub.com/story-type/life-in-a-pandemic/
More virtual tours:
Carlsbad Caverns:
https://artsandculture.withgoogle.com/en-us/national-parks-service/carlsbad-caverns/natural-entrance-tour
The Great Wall of China:
https://www.thechinaguide.com/destination/great-wall-of-china