Preheat the oven to 450°F (230°C).

In a large bowl, combine the cauliflower florets, cubed tomatoes, sliced Italian sausages, finely chopped garlic cloves, dried basil, salt, and pepper.

Mix well to coat everything evenly.

Transfer the mixture to an 8x8-inch baking dish and spread it out evenly.

Place the dish in the preheated oven and bake for 20 minutes.

While the cauliflower, tomatoes, and sausages are baking, prepare the quinoa.

Rinse the quinoa under cold water using a fine mesh sieve to remove any bitterness.

In a saucepan, combine the rinsed quinoa and water.

Bring to a boil over medium-high heat, then reduce the heat to low, cover, and simmer for 10 minutes or until the quinoa is cooked and the water is absorbed.

Remove from heat and let it sit, covered, for 5 minutes.

Fluff the quinoa with a fork.

In a small bowl, mix together the cooked quinoa, grated Romano cheese, olive oil, dried basil, salt, and pepper.

After the initial 20 minutes of baking, remove the baking dish from the oven.

Spread the quinoa mixture evenly over the partially cooked cauliflower, tomatoes, and sausages.

Return the baking dish to the oven and bake for an additional 10 minutes, or until the quinoa is heated through and starting to turn golden.

Switch the oven to broil and broil the bake for 5 minutes, or until the top is golden and crispy.

Remove from the oven and let it cool slightly before serving.

Serve the cauliflower, quinoa, and sausage bake hot.

Enjoy your delicious and nutritious meal!