Creating Slow Roasted Mushroom Pasta with Crisp Rosemary Chickpeas can be straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Prepare Chickpeas: On a baking sheet, spread the rinsed chickpeas. Drizzle with 1 tablespoon olive oil, sprinkle with chopped rosemary, salt, and pepper. Toss to coat evenly.
3. Roast Chickpeas: Roast in the preheated oven for 25-30 minutes or until golden and crispy, shaking the pan halfway through.
4. Prepare Mushrooms: While the chickpeas roast, clean and slice the mushrooms.
5. Sauté Mushrooms: In a large skillet, heat 1 tablespoon olive oil over medium-high heat. Add the garlic and sauté for about 30 seconds until fragrant.
6. Add Mushrooms: Add the sliced mushrooms to the skillet. Sauté until they are golden brown and tender, about 10-12 minutes.
7. Cook Pasta: Meanwhile, cook the pasta according to package instructions in salted water until al dente. Reserve ½ cup of pasta water, then drain the pasta.
8. Combine Ingredients: Add the drained pasta and heavy cream to the skillet with mushrooms. Stir to combine, adding reserved pasta water as needed for creaminess.
9. Incorporate Cheese: If using, stir in the grated Parmesan cheese until melted and smooth.
10. Serve: Toss in the roasted chickpeas and mix gently to combine. Season with salt and pepper to taste.