First, preheat your oven to 400°F/200°C. Then, line 2 - 3 baking sheets or large casserole dishes with parchment paper.
Add the chopped vegetables to the baking sheets. It's best to keep each type of vegetable separate as some may be done sooner than others.
Next, lightly drizzle or spray with olive oil, toss together with your hands, and then spread the vegetables out into single layers on the sheets. Sprinkle evenly with the salt and pepper.
Roast the vegetables in your preheated oven for approximately 35-40 minutes or until they are tender and the tips and edges are brown. For best results, flip once at the 20-minute mark.
Meanwhile, drain and rinse the beans. Then, sprinkle with seasoned salt, if desired. Warm them up via microwave or saucepan on the stove just before serving.
Also, prepare quinoa or rice according to the package directions. I usually choose quinoa because it only takes 15-17 minutes to cook versus most rices that take at least 30, (hey - every minute counts!) If desired, add seasonings to your grains. My favorites are curry powder or fajita seasoning.
Once the vegetables are done, drizzle with balsamic glaze and toss to coat.
To serve, fill half of each bowl or plate with roasted vegetables, and the other half with beans and grains. Then, top each with 1/4 of an avocado.Just add the chopped nuts and you're good to go! Drizzle with more balsamic glaze, if you're feeling saucy.