Cut the bacon into thin strips. Coarsely chop the walnut kernels. Wash thyme, shake dry. Pluck off the leaves, except for something to garnish. Wash the salad, drain well in a sieve and pluck into bite-sized pieces.
Fry bacon in a pan without fat for about 3 minutes. Add walnut kernels and fry for 1-2 minutes. Deglaze with orange juice and simmer for about 3 minutes. Cook pasta in boiling salted water according to package instructions for about 2 minutes. Drain noodles and let them drain.
Mix pasta, salad and thyme into the orange sauce. Season to taste with salt and pepper. Arrange noodles in 4 plates and sprinkle with parmesan. Garnish with thyme stems