Heat 1 tablespoon of olive oil in a medium saucepan over medium heat. Add the quinoa and toast it for 3-4 minutes, stirring frequently, until it becomes fragrant and lightly golden. This toasting step removes any bitter coating and adds nutty depth to the final dish. Pour in the chicken broth and bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes until the liquid is absorbed and the quinoa is tender. Remove from heat and let sit covered for 5 minutes, then fluff with a fork.
While the quinoa simmers, prepare your fresh components. Halve your tomatoes into small, bite-sized pieces and place them in a bowl. Slice the basil leaves into thin ribbons by stacking them, rolling tightly, and slicing crosswise—this prevents bruising and keeps the basil bright green. I find that preparing these fresh ingredients while the quinoa cooks saves time and ensures everything is ready for assembly.
In a small bowl, whisk together 2 tablespoons olive oil, 3 tablespoons lemon juice, 1 tablespoon balsamic glaze, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Transfer the fluffed quinoa from Step 1 to a large serving bowl. Add the tomatoes, mozzarella pearls, and basil ribbons from Step 2, then pour the vinaigrette over everything. Gently toss until all ingredients are evenly coated, being careful not to crush the mozzarella or wilt the basil too much. I like to use a light hand when mixing so the mozzarella stays intact and the salad maintains its fresh texture.