01 -
Set a large pot of salted water to boil and measure all ingredients before starting. This dish cooks quickly once started.
02 -
Once the water reaches a rolling boil, add the pasta and cook following the package directions until al dente. Drain well and set aside.
03 -
In a large skillet over medium-low heat, melt the butter. After about 2 minutes, add minced garlic and cook until the butter begins to foam and take on a light brown color, swirling the pan occasionally for even cooking.
04 -
Raise the heat to medium and whisk in the flour. Cook, stirring constantly, until the mixture darkens and the raw flour aroma dissipates, about 2 minutes.
05 -
Gradually pour in the chicken broth in small additions, whisking continuously to prevent lumps. Stir in the half and half slowly until combined and smooth.
06 -
Incorporate the oregano, parsley, mustard powder, garlic powder, and lemon juice into the sauce.
07 -
Reduce the heat to low, then blend in the grated Parmesan cheese until melted and the sauce thickens. Add fresh spinach and cook just until wilted.
08 -
Add the drained pasta to the skillet and toss to coat evenly in the sauce. Let stand briefly to thicken further before serving.