There was nothing to separate the sides at the break with neither Leicester nor Brighton able to wrestle control of a mediocre game.
Patson Daka fired Leicester into the lead 30 seconds after the re-start after James Madison and Harvey Barnes combined.
Albion looked more lively after going a goal behind and the introduction of the electric Tariq Lamptey and Danny Welbeck sparked life into the attack.
And it was Welbeck who netted the leveller when he rose at the far post to head home a pinpoint cross from Neal Maupay.
Albion extend their unbeaten run to six matches and are ninth in the table on 30 points. Great end to the match after a poor first half display.
Scroll down and click through to see who shone and struggled for Brighton at the King Power.
9. Leo Trossard 6
Caused problems for James Justin and clever deliveries into the box. Drifted in and out of the match but strong finish. Decent effort at the end saved by Kasper Schmeichel
10. Jakub Moder 6:
Always looking to get into goal scoring positions but didn't quite have the impact he needed. One of Albion's brighter performers though.
11. Neal Maupay 6
Worked hard as always but precious little in the way of chances and didn't hold the ball up as well as he can. Great end to the match though as his pinpoint cross picked out Danny Welbeck
12. Tariq Lamptey 8
Came on for Gross and his pace gave Leicester something else to think about. Nice cross for Welbeck's header. Why didn't he start?