Stallworth scored the first basket of the game on a layup at the 19:50 mark.
Kastine Evens was the first sub of the game for UK.
Kentucky is now 73-6 when scoring 70 or more points under Mitchell.
From the 9:02 mark to 3:54, UK went on a 17-4 run to extend its lead to 35-23.
With the score 58-50 with 8:52 remaining, UK went on a 14-4 run to extend its advantage to 73-54 with 2:41 to play in the game.
UK shot a season high from the free-throw line, converting on 18-21 for .857 percent.
The Wildcats have scored 30 or more points off turnovers in eight of their 13 games this season.
O'Neill and Stallworth recorded 21 points in the game, marking the first time UK has had two players score 20-plus points in a game since Keyla Snowden (22) and A'dia Mathies (21) reached the 20-point mark against Mississippi State (1/8/12).
The Wildcats extended their streak of consecutive games with a triple to 305.
UK won the turnover battle 27-13 and is 105-27 under Mitchell when committing fewer turnovers than its opponent.
Kentucky has forced double-digit miscues in 130 consecutive games.
The Cats are now 97-33 during that span.
UK has forced 20-plus turnovers in all 13 games this season and in 42 of its last 48 games, dating back to the start of last season.
Senior A'dia Mathies scored 10 points and passed Samantha Mahoney (2005-08) to move up to No. 4 on UK's all-time scoring list with 1,608 points. She is the all-time scorer in UK Hoops history for a guard.
Today marked her 116th career start, which ties her for fifth all-time with Lea Wise (1979-83). Mathies is now one shy from equaling Tiffany Wait (117, 1995-2000) for No. 4 on the list.
With two steals, Mathies moves to No. 4 on UK's all-time steals list and is just four shy from tying Leslie Nichols (278, 1982-86) for third.
Mathies has reached double figures in 11 of 13 games this season.
Junior DeNesha Stallworth recorded a UK career high with 21 points, while also charting a personal-best two steals.
Stallworth has reached double figures in 11 of 13 games, including 10 in a row.
Redshirt sophomore Jennifer O'Neill set new career highs with 21 points and four steals.
O'Neill made a career-best seven field goals 11 attempts from the field, including a career high four 3-pointers.