Pesto Pasta Bake

This isn’t your average pasta bake – it’s a vibrant, herb-packed sensation that combines fresh homemade pesto with perfectly cooked pasta and gooey melted mozzarella.

Pesto Pasta Bake

The secret to this dish’s incredible flavor is the made-from-scratch pesto, bursting with fresh basil, bright lemon, and toasted pine nuts. When it all comes together with that golden-brown cheese top, you’ll understand why this recipe deserves a permanent spot in your dinner rotation.

Pesto Pasta Bake

Ingredients

Pesto Pasta Bake

For the Pesto:

  • 2 cups fresh basil leaves
  • 1 8oz bag fresh spinach (divided)
  • 1 cup pine nuts (or almonds/cashews)
  • 5 cloves garlic, peeled
  • 1/3 cup parmesan cheese, freshly grated
  • 1 tsp salt
  • Juice of 1 lemon
  • 1/2 cup olive oil

For the Pasta Bake:

  • 12 oz dry pasta (penne or rigatoni work best)
  • 14 oz jar diced tomatoes, drained
  • 1 cup shredded mozzarella cheese
Pesto Pasta Bake

Steps

Pesto Pasta Bake
  1. Position rack in center of oven and preheat to 425°F (220°C). Thoroughly grease a 9×13 baking dish or 10-inch cast iron skillet, ensuring corners are well-coated to prevent sticking.
  2. Cook pasta in well-salted water until just al dente (about 1 minute less than package directions), as it will continue cooking in the oven. Drain but don’t rinse – the starch helps sauce adhesion.
  3. For the pesto, add basil and half the spinach to your food processor or blender. Pack leaves down firmly to ensure proper blending. If using pine nuts, toast them in a dry pan until fragrant (2-3 minutes) to enhance flavor before adding.
  4. Add toasted pine nuts, garlic, parmesan, salt, and lemon juice to the processor. Stream in olive oil while machine is running until you achieve a smooth, emerald-green sauce. If too thick, add oil 1 tablespoon at a time.
  5. In the empty pasta pot (saving dishes!), combine hot drained pasta with tomatoes and remaining spinach. The residual heat will perfectly wilt the spinach without overcooking it.
  6. Pour your freshly made pesto over the pasta mixture, stirring gently but thoroughly until every piece is coated in vibrant green sauce. The warm pasta will help the pesto distribute evenly.
  7. Transfer to prepared baking dish, spreading in an even layer. Top with mozzarella, ensuring even coverage for that perfect golden crust.
  8. Bake at 425°F for exactly 15 minutes, or until cheese is melted and edges are bubbling. Look for light golden spots on the cheese. Let rest 10 minutes before serving – this allows the sauce to set and prevents burning.
Pesto Pasta Bake

Smart Swaps

  • Use whole wheat pasta for extra fiber (cook 1 minute longer)
  • Substitute walnuts for pine nuts (use 3/4 cup instead of 1 cup)
  • Try dairy-free cheese alternatives (adjust melting time by 2-3 minutes)

Make It Diabetes-Friendly

  • Use Palmini noodles (hearts of palm pasta) to reduce carbs by 30g per serving
  • Replace regular pasta with chickpea pasta for 25% fewer net carbs
  • Portion into 10 servings instead of 8 to reduce carb load to 28g per serving
  • Pair with a side salad dressed with olive oil to slow glucose absorption

Pro Tips

  • Toast pine nuts until just golden for maximum flavor without bitterness
  • Reserve 1/2 cup pasta water before draining to thin pesto if needed
  • Use freshly grated parmesan – pre-grated won’t blend as smoothly
  • Let ingredients come to room temperature for even baking

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