Bring a large pot of lightly salted water to a boil. Cook elbow macaroni in the boiling water, stirring occasionally, until almost firm to the bite, about 6 minutes. Drain.
Meanwhile, melt bacon grease in a small cast iron skillet that fits in your air fryer over medium heat. Add garlic and cook until fragrant, about 1 minute. Stir flour into the hot bacon grease until golden brown, making a roux. Slowly whisk in milk and simmer until thickened, about 5 minutes.
Stir in bacon and Italian herbs. Mix in Cheddar, Parmesan, Colby-Monterey Jack, and ricotta cheeses, and season with salt and pepper. Stir until cheese has melted, about 3 minutes.
Preheat an air fryer to 390 degrees F (195 degrees C).
Fold pasta into the cheese sauce and top with bread crumbs. Spritz with olive oil and pat down to minimize fly-away crumbs.
Air-fry until the top is golden brown and the cheese is bubbling up at the edge of the skillet, about 15 minutes.
Nutritional Facts
Per 4 servings
Calories: 465
Carbohydrate: 59g
Fat: 17g
Fiber: 3g
Protein: 19g
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