Fast-food chains are competing to offer cheaper meals. From McDonald's to Del Taco, here are the best deals.

• Del Taco is the latest chain to offer a new lower-price combo deal.
• Other fast-food chains like Burger King and McDonald's are also involved in the value wars.
• Chains are trying to lure diners back in after high fast-food prices have turned many away.

The fast food wars are heating up.

In July, Del Taco became the latest chain to release a revamped value deal, offering 15 items at $2 and under.