If you're at Harrah's then you're closer to South Lake Tahoe. I've been there a few times, as I have friends in the area. We like Artemis Grill for Mediterranean food and the Sno Flake Drive in for ice cream!
For some of the best Latin American food I've ever had, hit up the Lakeside Inn & Casino. It looks like a total dive, but "Latin Soul" on the bottom floor is CHEAP and delicious. Go for the $4 breakfast specials.