You may be a gourmet mom, but your kids aren’t too sure about unfamiliar foods.  The trick is to present new foods in a familiar way or familiar foods in a new way.  Here are a few examples.
Welsh Rabbit:  This is the British version of an open faced, grilled cheese sandwich.  I have no idea why it’s called “rabbit,” but the name makes it more fun.  Here is a link to a few recipes on allrecipes.com, one of my favorite recipe sites:
http://allrecipes.com/Search/Recipes.aspx?WithTerm=welsh%20rabbit
Sweet potato French fries:  they are delicious and more nutritious than typical French fries.  You can make them from scratch, or buy them in the frozen food section.  In the grocery store I shop at, they are located in the organic food isle.  
Crepes:  make your kids some delicious dessert crepes, then have them try a dinner version.
Cheddar cheese risotto:  http://www.npr.org/templates/story/story.php?storyId=114320079  
(See my recipe review from March 2010).
Peanut Butter and Jelly Panini:  Use your fancy sandwich press to make a familiar treat.  I prefer grilled pb&j!
Use a variety of cheeses:  Instead of using the same old cheddar or American (which isn’t really cheese, but a “processed cheese food”) cheese on your kids sandwiches; give them something different like Swiss or provolone.  Instead of mozzarella string cheese, look for mini Babybel cheeses in the deli section.  
http://www.mini-babybel.com/products/mini-babybel/
Use a variety of pasta:  Don’t just use the same old macaroni and spaghetti noodles; make rotini and cheese or substitute angel hair or linguini in your spaghetti and meatball recipe.
Go on a new fruits and vegetable hunt:  When I was in 4th or 5th grade, I took cooking in 4H.  One of the assignments was to go to the produce section and find fruit that I had never tried before.  My mom and I found something called an ‘ugly fruit,’ which was a scary looking, wrinkled citrus fruit.  I was a little nervous to try it, but it was delicious!  The fact that I remember this project 20 years later says it all.  
Dress up your food:  One of my daughter and my favorite books is 
Fancy Nancy.  There’s a line in the book where she says, “Sandwiches definitely taste better when you stick in frilly toothpicks,” and it’s true!  Cut your sandwiches into small squares stick in a frilly toothpick.  Practice your cutting skills by julienne-ing your kids’ carrots.  Start using garnishes.  Serve juice in elegant glasses.  The fancy possibilities are endless!