Credit: Vivien Killilea/WireImage

Extra cheese, please!

LeAnn Rimes and Eddie Cibrian won't be hitting a tropical beach or a candlelit restaurant on Valentine's Day.

The recently engaged couple hit the red carpet at Sunday's Grammy Awards in L.A. -- and dished about their oh-so-casual plans for their first V-Day as fiance and fiancee.

Cracked Cibrian to Chris Harrison on TV Guide's red carpet show: "Is that tomorrow?"

Rimes laughed and explained, "We have his boys on Valentine's Day," Rimes, 28, said of Mason, 7, and Jake, 3, Cibrian's sons with ex-wife Brandi Glanville.

"So we are literally going to play Wii with some friends and eat pizza, which is better than anything we could be doing."

The controversial couple announced their engagement just after New Year's in January.