Ingredients1 h 5 m servings 778
- Preheat oven to 350 degrees F (175 degrees C). Grease a casserole dish.
- Bring a large pot of lightly salted water to a boil. Cook elbow macaroni in the boiling water, stirring occasionally until tender yet firm to the bite, about 8 minutes. Add baby spinach to the pot in the last minute of cooking; drain.
- Melt 2 tablespoons butter in a saucepan over medium heat; cook and stir onion until translucent, about 3 minutes. Stir garlic into onion mixture and cook until fragrant, about 1 minute. Whisk 2 tablespoons pesto, flour, black pepper, and salt into onion mixture until smooth; whisk milk in gradually. Cook and stir milk mixture until slightly thickened, about 2 minutes; stir in 1 1/2 cups Cheddar cheese, 1/2 cup Parmesan cheese, and 1/2 cup Asiago cheese; remove saucepan from heat and stir until cheeses are melted, about 1 minute.
- Stir cheese mixture into macaroni mixture; pour into prepared casserole dish. Cover dish with aluminum foil.
- Bake in the preheated oven for 25 minutes. Remove casserole from oven; increase oven temperature to 450 degrees F (230 degrees C).
- Melt remaining 1 tablespoon butter in a small saucepan; stir in remaining 2 tablespoons pesto, 1/4 cup Cheddar cheese, 1/4 cup Parmesan cheese, 1/4 cup Asiago cheese, and bread cubes. Remove casserole dish from oven, uncover, and top with bread mixture.
- Bake casserole with topping in the preheated oven, uncovered, until bubbly and golden, about 10 minutes.
Per Serving: 778 calories; 45.8 54.8 39.5 121 1348 Full nutrition
ReviewsRead all reviews 5
Thank you for this recipe! I doubled it and made it as a Thanksgiving side dish -- lots of rave reviews.
I used penne instead of macaroni, and a blend of italian, cheddar and parmesan cheeses and skipped the bread chunks, just based on what I had on hand, otherwise I followed the recipe. It was ver...
I decided to try it because regular mac and cheese is just so bland. This recipe provides just enough punch but not so much that it overpowers a main course. It's great alone and also as a side....