The last few months haven't been kind to ground beef. First came the news about pink slime, an ammonia-based filler that grossed us all out. Then this week came a confirmed case of mad cow disease in California -- and while that cow had, thankfully, not entered the food chain, we wouldn't blame you if the whole situation put you off beef for a while.

So what's a burger lover to do? Fortunately, there are super-tasty, beef-free alternatives. Added bonus? Prepped the right way, they're usually healthier, too.

"Almost anything is a better choice than beef," Elizabeth Somer, RD, author of "Eat Your Way To Happiness," told The Huffington Post. Here, eight equally delicious options.

Black Bean
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Mashed black beans can make a satisfying, nutritious burger swap. Somer recommends mixing them together with onion, garlic and chiles for a meal that is high in iron, fiber and a variety of vitamins and minerals. And they're cholesterol- and fat-free to boot!