Preheat the Oven: Start by preheating your oven to 375°F (190°C).
Sauté the Veggies: In a large skillet, heat the olive oil over medium heat. Add the diced onions and garlic, cooking until they become translucent.
Add Mixed Vegetables: Toss in your mixed vegetables and sauté for about 5 minutes until they’re tender.
Combine Ingredients: In a large mixing bowl, combine the sautéed vegetables, cooked quinoa or rice, diced tomatoes, Italian seasoning, salt, and pepper. Mix well to combine all the flavors.
Layer and Bake: Transfer the mixture to a baking dish. Top with grated cheese and sprinkle breadcrumbs over the top for a crispy finish.
Bake: Place the dish in the preheated oven and bake for about 30 minutes, or until the top is golden brown and bubbly.
Serve and Enjoy: Let it cool slightly before serving. Enjoy your Delicious Bake with friends and family!