1. Heat oil and sliced garlic in 12-inch straight-sided sauté pan over medium-high heat. Cook, stirring and turning frequently, until light golden brown, about 3 minutes. Using slotted spoon, transfer garlic to plate lined with paper towels. Sprinkle lightly with salt.

2. Add onion to pan; cook until starting to brown, about 5 minutes. Add minced garlic and red pepper flakes; cook, stirring constantly, until garlic is fragrant, about 30 seconds.

3. Add half of spinach to pan; using tongs, toss occasionally, until starting to wilt, about 2 minutes. Add remaining spinach, broth, tomatoes, and 3/4 teaspoon salt; cover (pan will be very full); increase heat to high and bring to strong simmer. Reduce heat to medium and cook, covered, tossing occasionally, until spinach is completely wilted. Stir in beans and olives.

4. Meanwhile, bring 4 quarts water to boil in Dutch oven over high heat. Add spaghetti and 1 tablespoon salt; cook until pasta is just shy of al dente. Drain pasta and return to pot. Add greens mixture to pasta, set over medium-high heat, and toss to combine. Cook until pasta absorbs most of liquid, about 2 minutes. Stir in 1 cup Parmesan; adjust seasoning with salt and pepper. Serve immediately, passing garlic chips, extra-virgin olive oil, and Parmesan separately.

Serves 4 to 6