Boil salted water in a large pot. Once boiling, cook noodles per instructions, typically boiling for about 8 minutes. Drain and return to pot.
Meanwhile, in the same pan used to fry the bacon, add the sliced shitake mushrooms and salt and pepper as desired, cooking until almost crispy, about 3-5 minutes.
Shuffle the mushrooms to the side of the pan and add half of the butter (1.5 tbsp) to the center of the pan. When butter has melted, add to it the sliced bell pepper and jalapeño. Season again with salt and pepper, as desired. Cook for another 3 minutes.
Shuffle the peppers to the side with the mushrooms and add the remaining 1.5 tbsp of butter to the pan. When melted, add all of the shrimp to the pan. Drizzle the honey over the shrimp and season with salt and pepper as desired. Cook until pink, about 2-3 minutes per side. Then add grated garlic, stirring until fragrant, about 30 seconds.
Once shrimp is cooked, combine it with the mushrooms and peppers in the pan and add the spinach or kale to it. Stir until greens have wilted, then turn off the heat.