8 mins
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. (10 minutes)
Hannah Doyle
Jun 19, 2025I tried this recipe with Gruyere and it was amazing! Thanks for the inspiration!
Rolando Huel
Jun 6, 2025This recipe is a game-changer! The pesto and spinach add such a fresh and vibrant flavor to traditional mac and cheese.
Chaz Marks
Apr 27, 2025My kids, who are usually picky eaters, devoured this! The breadcrumb topping is the perfect finishing touch.