Push through the burn for a few extra reps. Do an extra cycle of HIIT. Run an unintended 1/2 mile. Turn around as you're about to leave the gym and bang out one last set. It's amazing how satisfying work that's unexpected, unplanned, or unintended can be. Try it out.
Here's a low carb butterscotch pudding that will fill you up with only a small portion. It uses the traditional butter along with a brown sugar substitute. LCHF Keto Banting Weight Watcher THM Dessert Recipe