Smoky Quinoa, Spinach, & Caramelized Onion Stuffed Tomato

the healthy cook

Got great summer tomatoes? Grab a few juicy, ripe ones, scoop out the centers, and spoon in a savory filling like this Smoky Quinoa, Spinach, & Caramelized Onion. (For easy scooping, try a melon baller or grapefruit spoon.) I hope you love my shortcut for caramelizing onions: once the onions are soft, just add soy sauce and balsamic vinegar. Caramelized color and flavor in only a few minutes. Yum!