Making Slow Roasted Mushroom Pasta with Crisp Rosemary Chickpeas is straightforward if you follow these simple steps:

1. Preheat the Oven: Start by preheating your oven to 400°F (200°C).
2. Prepare the Mushrooms: On a baking sheet, spread the sliced mushrooms. Drizzle with half a tablespoon of olive oil, and season with salt and pepper. Roast in the oven for 15-20 minutes until golden brown and tender.
3. Crisp the Chickpeas: In a bowl, toss the drained chickpeas with the remaining olive oil, chopped rosemary, and a pinch of salt. Spread them out on a separate baking sheet. Roast in the oven for about 20-25 minutes until crispy, shaking the pan halfway through for even cooking.
4. Cook the Pasta: While the mushrooms and chickpeas are roasting, bring a large pot of salted water to a boil. Cook the pasta according to package instructions until al dente. Reserve 1 cup of pasta water, then drain the pasta and set aside.
5. Prepare the Sauce: In a large skillet over medium heat, add the minced garlic and sauté for about 1 minute until fragrant. Pour in the vegetable broth and bring to a simmer. Reduce heat and add the heavy cream, stirring it into the broth.
6. Combine Ingredients: Add the cooked pasta into the skillet with the sauce. Toss to coat and use the reserved pasta water as necessary to adjust the sauce’s consistency. Fold in the roasted mushrooms.
7. Plate the Dish: Serve the pasta hot, topped with roasted chickpeas, a sprinkle of grated Parmesan cheese, and some chopped parsley for garnish.
8. Enjoy: Delight in the rich flavors and textures of your Slow Roasted Mushroom Pasta with Crisp Rosemary Chickpeas!