• Bring a large pot of salted water to a boil. Wash and dry produce (except broccoli rice). • Trim and thinly slice scallions, separating whites from greens.

• Once water is boiling, add cavatappi to pot. Cook, stirring occasionally, until al dente, 9-11 minutes. Reserve 1 cup pasta cooking water, then drain. • Melt 1 TBSP butter (2 TBSP for 4 servings) in same pot over medium heat. Add panko and 1 TBSP scallion greens; toast, stirring, until panko is golden, 2-3 minutes. • Turn off heat; transfer to a small bowl. Wipe out pot.

• Melt 1 TBSP butter (2 TBSP for 4 servings) in same pot over medium-high heat. Add broccoli rice, scallion whites, half the garlic powder (all for 4), and a big pinch of salt. Cook, stirring, until broccoli is tender, 2-3 minutes. • Add cream sauce base, stock concentrates, and 1/2 cup reserved pasta cooking water (3/4 cup for 4); bring to a simmer. • Stir in mustard, cream cheese, cheddar, and mozzarella. Cook, stirring occasionally, until cheeses melt and sauce is thick and creamy, 1-2 minutes. • Add drained cavatappi; stir until pasta is thoroughly coated in sauce. TIP: If needed, stir in more reserved cooking water a splash at a time until pasta is coated in a creamy sauce. • Remove from heat.

• Divide mac and cheese between bowls. Garnish with toasted panko and remaining scallion greens. Serve.