Preheat the oven to 375 degrees F.

In large pot, cook pasta according to package directions, adding in peas when 1 minute of cooking time remains. Drain and set aside.

In large oven-proof skillet over medium-high heat, heat olive oil. Add onions, garlic, salt, carrots, broccoli and thyme. Cook, stirring occasionally, 7-8 minutes or until vegetables are soft.

Turn off skillet. Stir in pasta/peas mixture and tuna until well combined. Set aside.

In saucepan over low heat, stir together sauce ingredients until well combined and smooth, about 3-4 minutes.

Pour sauce over pasta mixture and gently stir to combine. Taste and season with salt and pepper.

Bake for 15 minutes or until sauce is bubbling at the edges.

To serve, sprinkle with chopped parsley, if desired.