Alternative to Willpower in Fighting Cravings

I noticed that I almost unconsciously revert to trying to fight cravings via willpower, i.e. resisting them. Let's take the example of food cravings. I usually make an internal commitment to avoid junk food, but the cravings nevertheless arise, and when my mood is low I fail to resist. **Are there alternatives to willpower in fighting cravings?** I had been wondering whether other solutions -- like mindfulness or even seeking healthier sources of pleasure -- might be more effective. More so, I believe I crave more because recently I experience less pleasure from activities or emotional sources. **Does Buddhism have any technique specifically linked to pleasure?**