Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C). This temperature ensures that the vegetables cook evenly and the casserole develops a nice, golden crust.
Step 2: Prepare the Vegetables
Cut the broccoli into florets and halve the tomatoes. Dice the onion and mince the garlic. Make sure all vegetables are washed and ready to go.
Step 3: Sauté the Aromatics
In a large skillet, heat a drizzle of olive oil over medium heat. Add the diced onion and sauté until translucent, about 5 minutes. Add the minced garlic and cook for another 2 minutes until fragrant.
Step 4: Assemble the Casserole
In a large mixing bowl, combine the broccoli florets, halved tomatoes, sautéed onions and garlic, and baby kale. Season with salt, pepper, dried oregano, and dried basil. Toss everything together until the vegetables are well-coated with the seasonings.
Step 5: Transfer to a Baking Dish
Lightly grease a baking dish with olive oil. Transfer the vegetable mixture into the dish, spreading it out evenly.
Step 6: Add Cheese
Sprinkle the shredded mozzarella cheese and grated Parmesan cheese evenly over the top of the vegetables.
Step 7: Bake
Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the vegetables are tender and the cheese is melted and golden brown.
Step 8: Serve
Remove the casserole from the oven and let it cool for a few minutes before serving. Enjoy your healthy, low-calorie vegetable casserole hot.
