Trim the asparagus and cut it into 1-inch pieces. Halve the sausage lengthwise, then slice it crosswise into half-moons. Thinly slice the garlic. Finely chop the parsley.
Warm the olive oil in a large skillet over medium-high heat. When it shimmers, add the asparagus, chicken sausage, and a big pinch of salt and cook, stirring occasionally, until the sausage is browned, 5 to 6 minutes. Add the garlic for the final 30 seconds.
Stir in the cooked grains, all but 2 tablespoons of the parsley, the oregano, garlic powder, red pepper flakes, and ¼ teaspoon salt. Stir until everything is combined well and warmed through, a minute or two.
Taste and adjust the seasonings as desired. (Some people [me] like a lot of salt and acid, so I always add more of these.)
Divide among four bowls. Crumble the cheese and sprinkle ½ ounce over each bowl. Finish with another sprinkle of parsley before you dig in.
