In a large pot of salted boiling water, cook the linguine according to package instructions until al dente. Drain and set aside, reserving ½ cup of pasta water.
In a large skillet over medium heat, melt 2 tablespoons of butter. Add the diced chicken, season with salt, pepper, and smoked paprika. Cook for about 6-8 minutes, until the chicken is browned and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, add the remaining 2 tablespoons of butter. Once melted, add the minced garlic, cayenne pepper, oregano, and thyme. Sauté for about 1 minute until fragrant.
Add the cherry tomatoes to the skillet, cooking for another 2-3 minutes until softened. Return the cooked chicken to the skillet, and add the lemon zest and juice, stirring everything to combine.
Add the cooked linguine to the skillet along with the reserved pasta water. Toss everything together until the pasta is well-coated and heated through. Adjust seasoning with salt and pepper as necessary.
Remove from heat, and sprinkle fresh parsley on top. Serve hot with grated Parmesan cheese on the side.
Notes
Adjust the cayenne pepper for desired spice level.