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Heat the olive oil in a large Dutch oven or pot over medium heat. Add the diced onions and halved cherry tomatoes. Sauté for 5-7 minutes, stirring occasionally, until the onions are softened and the tomatoes begin to burst. Season with garlic pepper.

While the vegetables are sautéing, bring the chicken broth to a boil in a separate saucepan.

Add the spaghetti to the Dutch oven with the sautéed onions and tomatoes. Pour the boiling chicken broth over the spaghetti. Stir gently to ensure the pasta is submerged. Bring the mixture back to a simmer, then cover the pot with a lid.

Cook for 8-10 minutes, or according to package directions, stirring occasionally to prevent sticking, until the pasta is al dente and most of the liquid has been absorbed. If the pasta seems too dry, add a splash more hot broth or water.

Remove the pot from the heat. Stir in the baby spinach until wilted. Add the red pepper flakes (if using) and the heavy whipping cream. Stir well to combine.

Stir in the shredded Parmesan cheese until melted and fully incorporated into the pasta.

If preparing the optional chicken, season the chicken breasts with salt and black pepper. Heat 1 tablespoon of olive oil in a separate skillet over medium-high heat. Cook the chicken breasts for 5-7 minutes per side, or until cooked through and an internal temperature of 165°F (74°C) is reached. Let rest for a few minutes before slicing.

Serve the one-pot pasta immediately in bowls, garnished with additional shredded Parmesan cheese. Serve with sliced chicken on the side, if desired.


Heat the olive oil in a large Dutch oven or pot over medium heat. Add the diced onions and halved cherry tomatoes. Sauté for 5-7 minutes, stirring occasionally, until the onions are softened and the tomatoes begin to burst. Season with garlic pepper.

While the vegetables are sautéing, bring the chicken broth to a boil in a separate saucepan.

Add the spaghetti to the Dutch oven with the sautéed onions and tomatoes. Pour the boiling chicken broth over the spaghetti. Stir gently to ensure the pasta is submerged. Bring the mixture back to a simmer, then cover the pot with a lid.

Cook for 8-10 minutes, or according to package directions, stirring occasionally to prevent sticking, until the pasta is al dente and most of the liquid has been absorbed. If the pasta seems too dry, add a splash more hot broth or water.

Remove the pot from the heat. Stir in the baby spinach until wilted. Add the red pepper flakes (if using) and the heavy whipping cream. Stir well to combine.

Stir in the shredded Parmesan cheese until melted and fully incorporated into the pasta.

If preparing the optional chicken, season the chicken breasts with salt and black pepper. Heat 1 tablespoon of olive oil in a separate skillet over medium-high heat. Cook the chicken breasts for 5-7 minutes per side, or until cooked through and an internal temperature of 165°F (74°C) is reached. Let rest for a few minutes before slicing.

Serve the one-pot pasta immediately in bowls, garnished with additional shredded Parmesan cheese. Serve with sliced chicken on the side, if desired.
