Jamie Oliver’s Mac and Cheese Recipe: Ultra-Creamy Bake With Hidden Veggies

This mac and cheese delivers on ultra-creamy comfort with a clever nutritional boost that even picky eaters won’t notice.

By blending cauliflower and butternut squash into the cheese sauce, you get all the richness with added vitamins. The baked topping turns perfectly golden.

Ingredients for Mac and Cheese Recipe Jamie Oliver

Pantry staples plus a couple fresh additions for that ultra-creamy, veggie-packed bake.

The cheeses are what make this sing. Sharp cheddar and Gruyère melt beautifully—avoid pre-shredded (it’s coated in anti-caking stuff). Whole Foods or Trader Joe’s have great pre-cubed butternut squash if you’re short on time. For cauliflower, fresh is ideal but frozen works in a pinch (thaw and drain well). The milk needs to be whole for that velvety texture.

No Gruyère? Fontina or Monterey Jack sub in nicely. Out of butternut squash? Sweet potato at equal amount keeps the sweetness. For a gluten-free version, swap the flour for cornstarch (use half the amount). Panko can be replaced with crushed crackers or even crushed cornflakes for crunch. The Dijon adds a subtle kick—yellow mustard at equal amount works if that’s what you’ve got.

Assemble and bake right away, or prep the sauce and veggies ahead—keeps 2 days in the fridge. Leftovers reheat beautifully (add a splash of milk). Freezes well for up to 3 months if baked without the topping.

Instructions

Here’s how I make this ultra-creamy bake with hidden veggies every time.

Step 1: Roast the Vegetables and Cook the Pasta

Preheat your oven to 400°F. Toss the 2 cups Cauliflower Florets and 1.5 cups Butternut Squash with a drizzle of oil, ½ tsp Salt, and ¼ tsp Black Pepper. Roast for 20-25 minutes until tender and starting to caramelize at the edges.

While the vegetables roast, cook the 12 oz Elbow Macaroni in salted boiling water for 1 minute less than package instructions—it’ll finish in the oven. Drain well and set aside. The slightly undercooked pasta prevents a mushy final dish.

Step 2: Make the Creamy Cheese Sauce

In a large pot over medium heat, melt 3 tbsp Unsalted Butter. Add 3 tbsp All-Purpose Flour and whisk constantly for 1-2 minutes until the mixture turns a light golden color. This is your roux—it’s the foundation for a velvety sauce.

Gradually whisk in the 2 cups Whole Milk, ensuring no lumps form. Stir in 1 tbsp Dijon Mustard, 2 cloves minced Garlic Cloves, 1 tsp Salt, ½ tsp Black Pepper, and ¼ tsp Nutmeg. Cook for 3-4 minutes until the sauce thickens enough to coat the back of a spoon.

Reduce heat to low and add the 8 oz Sharp Cheddar Cheese and 4 oz Gruyère Cheese, stirring until completely melted and smooth. Real talk: freshly grated cheese melts better than pre-shredded, which often contains anti-caking agents.

Step 3: Combine Everything and Add the Topping

Fold the cooked Elbow Macaroni, roasted Cauliflower Florets, and Butternut Squash into the cheese sauce until everything is evenly coated. The veggies should blend right in, making this dish a sneaky way to add nutrients.

Transfer the mixture to a greased 9×13-inch baking dish. In a small bowl, mix the 0.75 cup Panko Breadcrumbs with the remaining 1 tbsp Unsalted Butter (melted) and ½ cup Parmesan Cheese. Sprinkle this evenly over the top for a crispy, golden finish.

Step 4: Bake to Perfection

Bake in the preheated oven at 375°F for 20-25 minutes until the top is golden brown and the edges are bubbling. If the breadcrumbs brown too quickly, tent the dish with foil.

Let it rest for 5 minutes before serving. This allows the sauce to set slightly, making it easier to portion. Each bite should be creamy, cheesy, and packed with the subtle sweetness of roasted veggies. Serve hot and enjoy the comfort!

Storing and Reheating This Recipe

🍳 Refrigerator Storage

To keep your Jamie Oliver mac and cheese fresh, transfer leftovers to an airtight container once cooled. Store in the refrigerator for 3-4 days. This prevents the sauce from absorbing odors and maintains its creamy texture. For best results, press plastic wrap directly onto the surface to minimize air exposure.

❄️ Freezer Storage

For longer storage, freeze your mac and cheese for up to 2-3 months. Portion into freezer-safe containers or heavy-duty bags, removing as much air as possible. Wrap tightly with aluminum foil for extra protection against freezer burn. Thaw overnight in the fridge before reheating for even results.

🔥 Reheating Methods

Revive your dish in the oven at 350°F (175°C) for 15-20 minutes, covered with foil to retain moisture. For a quicker option, microwave individual portions at 50% power in 1-minute intervals, stirring between each. For a smoky twist, reheat in a smoker at 225°F (107°C) for 30-40 minutes, adding a sprinkle of cheese to refresh the topping.

💡 Quality Preservation

To prevent dryness, add a splash of milk or cream when reheating. If frozen, thaw in the fridge overnight for even heating. Avoid high heat, which can cause the sauce to separate. For extra richness, top with fresh grated cheese before reheating to restore that gooey, golden finish.