Marcus Samuelsson and David Burke get ready for the Quickfire.

Monica Pope, Thierry Rautureau, and Carmen Gonzalez look ready to get cookin'.

Here's the lineup on this week's Masters: David Burke, Marcus Samuelsson, Monica Pope, Thierry Rautureau, and Carmen Gonzalez.

It's easy to spot "The Chef in the Hat," Thierry Rautureau!

Monica Pope has an advantage in this Quickfire Challenge - a seven year old daughter who loves a good grilled cheese!

Carmen decides to give her grilled cheese a Puerto Rican twist.

Marcus Samuelsson is the youngest chef to ever receive two three-star ratings from The New York Times!

David Burke, one of the leading pioneers in American cooking, gets working on his grilled cheese!

Why did Thierry Rautureau become a chef? So he'd never go hungry!

Kelly felt there were too many elements on David Burke's plate.

Marcus not only makes a mean grilled cheese, but adds a side soup and salad for some extra flare.

Kelly likes Carmen's use of herbs in her grilled cheese sandwich.

Thierry reveals he has never made this particular type of goat cheese sandwich before.

Monica reveals she was a bit nervous presenting her Moroccan-inspired, exotic grilled cheese. But her unique sandwich won the Quickfire Challenge!

Kelly reveals that for this week's Elimination Challenge, the chefs will be cooking for celebrity Mekhi Phifer!

Monica gets an advantage for winning the Quickfire, she'll get to choose which protein to use, and her competitors will not be allowed to use the same protein.

David Burke is playing for Table to Table, and he's planning a soulful twist on a chicken pot pie.

Carmen decides to prepare a sausage stew.

Thierry's game plan? Get everything done on prep day and drink cocktails with the guest on Day 2!

Marcus scans the aisles of Whole Foods.

Monica and Carmen discuss their upcoming challenge.

Marcus is competing for The UNICEF Tap Project.

Thierry prepares his spiced pork shoulder.

Carmen forgot to bring her sausage stew, so she's forced to waste precious time driving through LA to pick up her forgotten meal!

Marcus works on his soulful chicken dish.

Thierry looks confident!

Monica and David decide to give Carmen a hand with her dish because of the setback.

Thierry feels bad for Carmen, but it's a competition and he's focused on his own food!

Monica tried to help, but Carmen's dish was burned.

Marcus gets ready for Mekhi's party of 125 people!

With the number of setbacks Carmen has faced, she doesn't expect to win the 'Master' title.

Marcus presents his barbecued chicken dish.

Monica presents her dish to the judges, a deconstructed version of shrimp and grits.

The judges enjoy Carmen's dish, oyster stew, but James misses the starch in the dish.

Marcus is all smiles after a successful birthday party!

Thierry prepares a Moroccan spiced pork shoulder, which James declares is very "pork-licious."

Monica's feeling confident after many compliments from the party guests.

Mekhi and the judges dig in!