For the chicken
01 -
1 1/2 lb (680 g) boneless skinless chicken breasts
02 -
1 teaspoon garlic powder
03 -
1/2 teaspoon onion powder
04 -
3/4 teaspoon kosher salt, divided
05 -
1/2 teaspoon black pepper, divided
06 -
1 tablespoon olive oil
07 -
1 tablespoon unsalted butter
For the creamy Asiago mushroom sauce
08 -
8 oz (225 g) cremini mushrooms, sliced
09 -
3 green onions, thinly sliced, green tops reserved for garnish
10 -
3 cloves garlic, minced
11 -
1 teaspoon fresh thyme leaves, or 1/2 teaspoon dried thyme
12 -
1/2 cup (120 ml) low-sodium chicken broth
13 -
1 teaspoon Dijon mustard
14 -
1 cup (240 ml) heavy cream
15 -
3/4 cup (75 g) freshly grated Asiago cheese
16 -
1 tablespoon chopped parsley, optional for serving