Ashley Olsen is secretly planning her wedding to her boyfriend of seven months, actor Justin Bartha. Though it’s not clear if Bartha’s actually proposed to the pint-sized mogul, it appears that Ashley is moving forward with plans for quite the lavish, elegant, and surprisingly taco-centric wedding.

“Ashley has dreamed of having her wedding on the French Riviera, and she’s going to ask her favorite designer and friend, fashion icon Karl Lagerfeld, to create a custom-designed gown to the tune of a quarter million dollars!” a pal told THE ENQUIRER.

“She wants to take her vows under a canopy of exotic white flowers as the sun sets behind her at the super-exclusive Hotel du Cap Eden Roc. The place is for the fabulously wealthy and accepts only cash – no credit cards.” The former “Full House” star will shell out $150,000 to charter a private jet to fly in family members and friends, and pay another $400,000 for three nights of deluxe accommodations for them, said the source.

Centerpieces from Moe’s Flowers in West Hollywood will be flown in to the tune of $100,000, and Ashley will fork over another $100,000 for a dinner of tacos, enchiladas and guacamole to be catered by the Mexican restaurant Dos Caminos of New York City, said the source.

“Ashley even wants some of her favorite candy, including Twizzlers, Tootsie Rolls, Sour Patch Kids and Sour Worms to be scattered around the reception for guests to nibble on,” said the pal. “She also wants photographer Anne Leibovitz, who Mary-Kate has worked with, to capture the entire extravaganza on film.”

[From the National Enquirer, Nov. 10 2008 print ed.]

It all sounds elegant, but I found the Mexican food a little surprising. My first thought was maybe they’re golden tacos or something. The color could work. They just don’t seem to fit with the rest of the theme. The candy is cute and I’ve heard of other couples doing that as a fun way to add some sweets into the reception. But tacos at a wedding … that might be a first. It’s definitely more memorable than the traditional chicken or fish. If nothing else it strikes me as potentially messy. I have never seen anyone eat a taco with grace. Though I’d guess if anyone could do it in an understated fashion, I’d say Ashley Olsen is up to the task.

The Enquirer notes that Ashley’s friend says that even though they haven’t dated that long, “‘Ashley thinks she’s found love.’” I’d say it’s still a little early. Clearly she’s serious about the relationship and it’s nice that she’s so happy, but I wouldn’t be putting down a deposit on that taco cart quite yet.

Here’s Ashley Olsen outside the Ed Sullivan Theatre for the ‘Late Show With David Letterman’ in New York yesterday. Images thanks to WENN .