Del Taco, founded in the early 1960s in a tiny desert town called Yermo, is looking back to its roots in its latest menu innovations.

The result is bigger burritos.

The chain, now based in Lake Forest, is boosting what interim president Sarah McAloon calls its “classic” burritos to more than half a pound each.

“We’re looking at making sure that our core products are always improving as well as adding new items,” McAloon said in a phone interview.

The upgrade includes the signature Bean & Cheese Burrito, which is included in three value combos called El Big Boxes.

A $5 Clásico box includes the burrito, a mini quesadilla, crinkle-cut fries and a 16-ounce soft drink.

A $7 Mex Faves box includes the burrito, a Grilled Chicken Taco, a soft Snack Taco, fries and a drink.

A $9 Ameri-Mex bo

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