Step 1- Char the Corn
Preheat a grill or grill pan to medium-high heat. Place the corn directly on the grates and cook, turning occasionally, until lightly charred on all sides—about 8 to 10 minutes. Don't have a grill? Char the corn directly over a gas flame set to medium heat, turning with tongs until evenly charred. Let it cool slightly, then cut the kernels off the cob.
Step 2- Assemble the Salad
In a large bowl, combine the black beans, chickpeas, pinto beans, charred corn, red bell pepper, cucumber, green onions, jalapeño, and cilantro. Give everything a gentle stir so it's evenly distributed. This is where the salad starts looking like an actual fiesta.
Step 3- Make the Dressing
In a small bowl or jar, whisk together the avocado oil, lime zest, lime juice, maple syrup, garlic, salt, and pepper until well combined. Taste it—if it needs more acidity, add another squeeze of lime. This dressing is doing a lot of flavor work, so don't rush it.
Step 4- Add Dressing and Toss
Pour the dressing over the salad and toss until everything's well coated. Every bite should get a little bit of that citrusy, garlicky goodness. If you're prepping ahead, hold off on this step until closer to serving time.
Step 5- Serve
Garnish with fresh cilantro and dairy-free cotija-style cheese if you're using it. Serve immediately, or chill it until you're ready to dig in.