In a large skillet, on high heat, heat 2 tablespoons of olive oil until hot. Add shrimp and cook on one side on high heat for 1 minute. While it cooks, sprinkle the uncooked side of shrimp with salt, paprika and Italian seasoning. Flip the shrimp over, and cook on the other side for 1 minute on high heat. Reduce heat to medium, flip shrimp over again a couple of times, making sure all shrimp is covered in spices and until the shrimp turns pink in color, for a couple of minutes. Remove shrimp from the pan and keep shrimp warm.
To the same pan (but without shrimp), add chopped tomatoes, garlic, half the bacon (already cooked and drained of fat), crushed red pepper flakes. Mix everything, and cook for about 1 minute, stirring everything on medium heat.
Add half and half and bring to boil. Add another ¼ teaspoon salt, stir. Only after half and half starts boiling, add Parmesan cheese (freshly shredded) and start stirring. Once the cheese start melting, immediately reduce heat to medium and stir, while simmering, until the cheese completely melts and the sauce becomes creamy, which should take 1 minute (at most 2 minutes). Then, reduce heat to low, add fresh spinach, cover with the lid and let the sauce sit, simmering on very low heat, for about 1 minute. Remove the lid, stir the sauce, the spinach should start to wilt, keep stirring on low heat, until the spinach wilts, for another minute.
In the mean time bring a large pot of water to boil, add pasta and cook it according to instructions. Drain the past.
Add cooked pasta to the skillet with the sauce, stir everything. Add cooked shrimp and remaining half of bacon (cooked and drained of fat) to the skillet. Season with more salt and red pepper flakes if necessary. To serve, top the pasta with grated Parmesan cheese.
Notes
WHAT IS HALF AND HALF? Half and half is the US milk product that combines half milk half heavy cream (whipping cream) to form a lighter cream. Make 1 cup of half and half by combining ½ cup milk and ½ cup heavy or whipping cream.