McDonald's (NYSE:MCD) strong same-store sales for May were hardly disappointing. Still, investors found reason to grimace, as shares of the Golden Arches dropped on the news.

Mickey D's May comps increased 5.1% worldwide -- but most of the strength came from abroad. European comps surged 7.6%, and comps in the Asia/Pacific, Middle East, and Africa rose 6.4%. The U.S. was the laggard, with comps only increasing by 2.8%.

Thanks to all those foreign sales and a weaker dollar, McDonald's also said currency translation will continue to take a bite out of its results. The company expects an $0.08-to-$0.09-per-share chomp out of earnings for the second quarter, and $0.20 per share for the year, if current trends remain the same.

It seems investors took this news a bit hard, but then again, there's a little more pessimism in the market today in general. May's retail comps data released last week showed that American consumers remain unwilling to spend money. Given that, McDonald's May data looks pretty darn good.

McDonald's has been doing consistently well despite economic turbulence, and like discounter Wal-Mart (NYSE:WMT), it certainly offers the values consumers crave in these penny-pinching times. Rivalry from usual suspects Burger King (NYSE:BKC) and Wendy's/Arby's Group (NYSE:WEN) hasn't seemed to slow McDonald's momentum, and the company continues to strike at less expected rivals, like the new coffee offerings it's aimed at Starbucks (NASDAQ:SBUX).

In other words, McDonald's investors should focus on the company's strong, consistent performance in a difficult climate, rather than sweating the short term. When it comes to solid long-term stock ideas, McDonald's isn't clowning around.

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Starbucks is a Motley Fool Stock Advisor recommendation. Starbucks and Wal-Mart Stores are Motley Fool Inside Value recommendations. The Fool owns shares of Starbucks. Try any of our Foolish newsletter services free for 30 days.

Alyce Lomax owns shares of Starbucks. The Fool's disclosure policy is tough on hamburger-related crime.