Fat burning will be minimal after the low intensity cardio you're doing anyway, so you may as well eat ASAP to stay out of a catabolic state. Depending on your dieting goals, WEBB gave some good advice. A protein shake on the way home and then a solid meal works well. Just make sure to figure it into your diet and daily macros.
But the biggest problem I see is the abs training after cardio. You're already running on empty, just got done with 45 minutes of cardio, then you're gonna train your core muscles?

That has catabolism written all over it.
1buffsob