Preheat your grill or grill pan to medium-high heat.
In a large mixing bowl, toss the zucchini, yellow squash, red bell pepper, red onion, cherry tomatoes, and corn with olive oil, smoked paprika, salt, and pepper.
Place the vegetables on the grill and cook until they’re tender and have nice char marks, about 3-5 minutes per side. Remove from the grill and set aside. Once cool, cut the corn off the cob.
Heat olive oil in a skillet over medium heat. Add the halloumi or paneer cubes and cook until golden and crispy on all sides, about 5 minutes. Sprinkle with dried oregano and set aside.
In a small bowl, whisk together olive oil, lemon juice, lemon zest, Dijon mustard, honey, salt, and pepper.
In a large salad bowl, combine the grilled vegetables and corn. Drizzle with the lemon vinaigrette and toss to coat. Top with the salty cheese bites.