For CROCK MAC 'N CHEESE, cook pasta in large pot according to package directions. Meanwhile, whisk milk, Country Crock® Spread and flour in large saucepan. Bring to a boil over medium-high heat, whisking frequently. Reduce heat and cook, stirring occasionally, until thickened, about 5 minutes. Stir in cheese until melted; remove from heat.
Drain pasta; return to pot and toss with sauce.
FOR GOOD FATS TOPPING, melt Country Crock® Spread in large nonstick skillet over medium heat and cook bread crumbs, walnuts and flax seeds, stirring, until toasted, about 5 minutes. Sprinkle servings evenly with topping.