Derby Name Puns

Theme is Mexican food and my last name is Bean. I know the possibilities are endless but I want something perfect.

Lettuce, because lettuce is always a head

One day a farmer's mare birthed two foals. One was named Hobbin, and the other Noggin. The two horses grew up and loved to race each other. One day the farmer noticed the two racing each other around the pasture and thought to himself, "Wow! These horses are quick!" So the next day he entered them into a local derby. As the race was about to start, the horses were rearing and snorting to get let out of the gate. As soon as the gates swung open, both horses immediately bolted to the front of the race as the announcer was going wild, "It's Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, and Hobbin wins by a nose!" Excited by the win, the farmer then enters them into the Kentucky Derby. Once again, as soon as the gates open, both horses fly to the front of the race and it's Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, Noggin-Hobbin and again, Hobbin wins by a nose. This continues in every race until Hobbin has won the Triple Crown. By this point the farmer is beginning to realize just how fast these horses are, so he decides to enter them into a NASCAR race and again, it's Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, Noggin-Hobbin and again, Hobbin wins by a nose. This pattern continues until Hobbin wins the Sprint Cup. Still believing that he can push these horses further, he enters them both into an F1 Grand Prix. Unbelievably, against some of most well-engineered machines on Earth, as soon as the race started it was Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, Noggin-Hobbin and again, Hobbin wins by a nose. Hobbin won so often that he was named the World Drivers' Champion. After that the farmer decided that the horses had done it, they'd won the most prestigious races in the world; they had earned their retirement. Five years later, as the two horses were grazing in their pasture, Noggin walked up to Hobbin and said, "Hey, you know, you won all of those races we were in. Do you think that we could race around the pasture, and you could just let me win one race?" "Okay, I'll do that for you" Hobbin replied. So, just like the olden days, the two horses were off, and ever the same, it was Hobbin-Noggin, Noggin-Hobbin, Hobbin-Noggin, Noggin-Hobbin, and again, Hobbin beats Noggin by a nose. The old farm dog, watching from the farmhouse's front porch, walks over and asks Hobbin, "Hey, why'd you do that? You said you'd let him win, the race was just for fun; it meant nothing." To which Hobbin responded, "WOW. Would you look at that? A t