Heat the oven. Preheat to 425°F (220°C). Line a large sheet pan with parchment for easy cleanup.
Prep the veggies. Cut everything into similar, small pieces so they roast evenly and are easy for small hands to pick up.
Season well. In a large bowl, toss the broccoli, sweet potato, bell pepper, zucchini, and tomatoes with olive oil, salt, pepper, garlic powder, paprika, and dried herbs.
If using chickpeas or tofu, toss them in too for extra crisp edges.
Spread on the pan. Arrange in a single layer. Keep space between pieces so they roast instead of steam.
Roast until tender and golden. Bake for 22–28 minutes, stirring once halfway. You want lightly browned edges and fork-tender centers.
Sweet potatoes may take the longest; check them first.
Warm the base. While the veggies roast, heat your rice, pasta, or grains. Season lightly with salt and a teaspoon of olive oil or butter for flavor kids recognize.
Mix the sauce. Stir together your chosen sauce. Taste and adjust: add a pinch of salt, a bit of honey for sweetness, or a splash of lemon for brightness.
Assemble the bowls. Add a scoop of base to each bowl.
Top with roasted vegetables and your protein (if not already roasted together). Drizzle with sauce. Sprinkle cheese or toppings if using.
Serve warm. Offer extra sauce on the side so kids can control how much goes on their bowl.