Best Zucchini Rice Gratin Recipes

ZUCCHINI, TOMATO, AND RICE GRATIN

Steps:

• Preheat oven to 450°F Cook the rice according to your favorite method.
• While rice cooks, coat two large baking sheets each with a tablespoon of a of olive oil. Spread zucchini and tomato slices on the baking sheets in as close to a single layer as you can. Sprinkle with 1/2 teaspoon salt and a few grinds of black pepper. Roast tomatoes for 10 minutes and zucchini for 20. Flip zucchini halfway through, but don't bother to flip the tomatoes.
• Heat a large, heavy skillet over medium heat. Once heated, add 2 tablespoons olive oil, heat oil, then add onions, garlic and 1/4 teaspoon salt to pan. Cover and reduce heat to low, cooking onion until limp and tender, about 15 to 20 minutes. Stir occasionally.
• Combine onion mixture, rice, eggs, thyme, half of your grated cheese and a half-tablespoon of olive oil in a bowl. Add a good amount of freshly ground black pepper. Use the remaining half-tablespoon of olive oil to coat a shallow 2-quart baking dish. Spread half of the rice mixture in bottom of dish. Arrange half of roasted zucchini on top. Spread remaining rice mixture over it, arrange remaining zucchini on top, then tomato slices. Sprinkle with remaining grated cheese and bake in the top third of the oven until set and golden brown, about 20 minutes.

ZUCCHINI RICE GRATIN

Steps:

• Preheat oven to 450°F with racks in upper and lower thirds.
• Cook rice according to package instructions.
• While rice cooks, toss zucchini with 1 tablespoon oil and 1/2 teaspoon salt in a shallow baking pan. Toss tomatoes with 1/2 tablespoon oil and 1/4 teaspoon salt in another baking pan.
• Roast zucchini in upper third of oven and tomatoes in lower third, turning vegetables once halfway through roasting, until tender and light golden, about 10 minutes for tomatoes; 20 minutes for zucchini. Leave oven on.
• Meanwhile, cook onion and garlic with 1/2 teaspoon salt in 2 tablespoons oil in a large heavy skillet, covered, over low heat, stirring occasionally, until very tender, 15 to 20 minutes.
• Stir together onion mixture, cooked rice, eggs, thyme, 1/4 cup cheese, 1 tablespoon oil, 1/4 teaspoon salt, and 1/2 teaspoon pepper. Spread half of rice mixture in a shallow 2-quart baking dish, then top with half of zucchini. Spread remaining rice mixture over zucchini, then top with remaining zucchini. Top with tomatoes and drizzle with remaining 2 tablespoons oil, then sprinkle with remaining 1/4 cup cheese.
• Bake in upper third of oven until set and golden brown, about 20 minutes.

ZUCCHINI TOMATO RICE GRATIN

Steps:

• 1. Preheat oven to 475 degrees. Brush 2 large baking trays with olive oil to cover bottoms of pans.
• 2. Thinly slice the zucchini,tomatoes and onion. If you have a mandolin slicer, it is easy. If not, try to keep them thin and uniform.
• 3. Place sliced zucchini and tomatoes on top of the oil covered sheets. Sprinkle generously with salt and pepper. Roast in preheated oven for about 15 minutes, until they start to wilt. Flip over the zucchini slices. You can leave the tomatoes alone. Cook for an additional 10 minutes or so, until they just start to brown around the edges. Take out of oven.... leave oven on, and drain zucchini on paper toweling if needed. Again, the tomatoes dont have to be drained. (too messy) :)
• 4. While the vegetables are roasting, heat up about 1 tablespoon of olive oil in a medium pot. Saute onion slices until transparent. Add the garlic and saute for an additional 3 minutes.
• 5. In the same pot, add the cooked chilled rice,eggs,thyme,1 teaspoon of olive oil and 1/4 cup of the asiago cheese. Salt and pepper to taste. Dont be shy with the pepper!
• 6. In a small casserole dish or cast iron skillet, layer half of the rice mixture on bottom of dish. Then 1/2 of the roasted zucchini. The rest of the rice, the rest of the zucchini and then the tomatoes. Sprinkle with remaining 1/4 cup of cheese.
• 7. Bake on top rack for about 20 minutes or until the cheese has melted.

ZUCCHINI RICE GRATIN

Steps:

• Preheat oven to 425°F. Combine panko and 1/4 cup of the Parmigiano-Reggiano in a small bowl, and set aside.
• Heat oil in a large skillet over medium. Add onions, and cook, stirring often, until golden brown, 5 to 7 minutes. Add garlic, and cook, stirring constantly, until fragrant, 45 to 60 seconds. Add flour, and stir to combine. (Mixture will be dry.) Gently stir in zucchini. Add milk, rice, thyme, cayenne, and remaining 1/2 cup Parmigiano-Reggiano, and stir to combine. Spoon mixture into a lightly greased 13- x 9-inch baking dish. Sprinkle with salt and black pepper. (Or, you can start with a large ovenproof skillet and then bake the gratin in it instead of in a baking dish.)
• Bake in preheated oven until set and liquid is absorbed, about 40 minutes. Remove gratin from oven. Increase oven temperature to broil with oven rack 6 inches from heat. Sprinkle top of gratin with panko-cheese mixture, and broil until golden brown, about 5 minutes. Serve immediately.