What are some top attractions/coffee/food places in Houston in winter?

I’m visiting Houston soon and I’m looking for some top attractions, food places (vegan/vegetarian friendly), and coffee/snack stops iconic to Houston.

1. Attractions: we are not going to Galveston (too cold), but will check out JSC (space center). Any other recs??

2. Coffee/beverage/snack places: any iconic beverage places to go to? One of my buddies has a sweet tooth and other rly doesn’t haha. Bars work too but anything more chill where we can grab a couple drinks, eat some grub and chill with friends reuniting?

3. Food places? I’ve got a few Asian places I’m thinking about. Any Vegetarian/vegan friendly ones which are iconic to Houston?

Anything else we should do on our trip here?