Can this be made in under 30 minutes?

Yes, the recipe is designed to be quick and efficient.

Does it work for meal prep?

Most versions store well for one to three days.

Yes, simple swaps can be made for convenience or dietary needs.

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Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish.
Steam or blanch the cauliflower and broccoli florets for 5 to 7 minutes until tender but still slightly firm. Drain and set aside.
In a skillet, heat olive oil over medium heat, then sauté the chopped onion and garlic for 2 to 3 minutes until softened and fragrant.
In a mixing bowl, combine cheddar cheese, mozzarella cheese, sour cream, mayonnaise, milk, salt, black pepper, paprika, and garlic powder. Stir until well combined.
Add the cauliflower and broccoli to the bowl and stir gently to coat the vegetables evenly with the cheese mixture.
Transfer the mixture to the prepared baking dish and spread evenly.
If desired, sprinkle cooked crumbled meat and chopped green onions on top.
Bake for 20 to 25 minutes, until the top is golden and bubbly.
Let the casserole cool for a few minutes before serving to set the sauce and make slicing easier.

Use frozen florets to save time, and feel free to customize with your favorite cheeses or proteins.