Season chicken breasts with salt, pepper, and dried oregano on both sides.
Heat olive oil in a large skillet over medium-high heat and sear chicken until golden brown and cooked through, roughly 6 to 8 minutes per side.
Remove chicken from the skillet and let it rest on a cutting board.
In the same skillet, add the minced garlic and shallots, sautéing for 1-2 minutes until translucent.
Stir in the sundried tomatoes and red pepper flakes, cooking for another minute.
Pour in the chicken broth and heavy cream, bringing the mixture to a light simmer.
Add the ramen noodles directly into the simmering liquid and cook for 3 to 4 minutes until the noodles are tender and the sauce has thickened.
Stir in the parmesan cheese and fresh spinach, folding until the spinach has wilted and the cheese is fully incorporated.
Slice the rested chicken into strips.
Divide the ramen and sauce into two bowls and top with the sliced chicken.