The realtor from Wilmington, DE won the $250,000 prize over server Adrien Nieto in the second season finale of the amateur cooking competition this week.
Stay-at-home dad Christian Collins finished in third place.
Behm told Digital Spy that she would use some of the money to expand her catering company Pink Martini, but also hopes to release a cookbook and meet with networks about a possible cooking show.
She said: "I want to see if I can parlay everything into making people really enjoy food again and make them excited about food.
"I think when you have a passion for something and it shines through then people can connect with that. I love to cook and I want other people to figure out cooking can be a way of relaxing and bringing the family together and just making people smile."
Behm triumphed in MasterChef after impressing judges Gordon Ramsay, Joe Bastianich and Graham Elliot with her final three-course meal on Tuesday night.
She chose to serve pan-seared scallops with quail egg for her appetizer, stuffed quail with creamy potatoes and spinach as her main, and a dessert of braised pear, poached apples and mascarpone.
Behm later described the win as "a complete thrill", saying: "All of the hard work paid off! I am absolutely elated and honoured to represent the 100 amateur cooks who made it to Los Angeles. I'm excited about my culinary future, and can't wait to continue to inspire others to bring smiles to the faces of their families and friends through food."
MasterChef is currently casting for its third season.
> Read Digital Spy's full interview with Jennifer Behm here