*all walking distance from Hotel Vandivort*
Breakfast/Coffee
The Order @ Hotel Vandivort (very fabulous brunch)
Gailey's (best waffles)
The Coffee Ethic (best coffee, bar none)
Lunch
Gailey's (waffles for lunch? Consider it)
The Order @ Hotel Vandivort
Greek Belly (do not let the name dissuade you, it's good)
Springfield Brewing Co. (good for big groups, good beer)
St. Michael's (try the banana cake)
Dinner
The Golden Girl Rum Club
Nonna's (Italian)
Zayka (Indian)
Best of Luck Beer Hall (they got bocce! they got cornhole!)
Rama Thai
Skully's Ramen (a short drive, or a long walk)
Springfield Brewing Co.
Drinks
Vantage (the rooftop bar at Hotel Vandivort)
The Golden Girl Rum Club (Lil's favorite spot)
MudLounge
Best of Luck Beer Hall
J.O.B. Public House
Mother's Brewing Co.
Hold Fast Brewing Co.
Lil's favorites are Busiek State Forest (find the old graveyard! ooo) and Whitaker Point Trail (worth the drive), but any on this list are a solid bet. If you want a quick jaunt, try the trails at Valley Water Mill or Stockton Lake, some of which can be conquered in under an hour.
There's also great hiking and floating in Northwest Arkansas, a quick drive over the Missouri border.
You have not lived until you've visited this 1880s hillbilly-themed adventure park in Branson. It's about an hour from downtown Springfield and worth every penny. A profoundly weird and beautiful place. Here is a brief preview of the vibes.