Healthy Recipes For Healthy Living

Keto Friendly Crock Pot Tuna Steaks With Tomato Sauce

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Tuna steaks are not as commonly-used as salmon, but they are delicious! This recipe is very simple, as I want the tuna flavour to come through, rather than being masked by other strong flavours.

Serves: 4
Time: approximately 3 hours

Keto Friendly Crock Pot Tuna Steaks With Tomato Sauce


  • 4 tuna steaks
  • 3 garlic cloves, crushed
  • 1 lemon, sliced into 8 slices
  • ½ cup white wine

Tomato Sauce:

  • 3/4 cup peeled and seeded tomato in 1/2-inch dice
  • 1/2 cup sweet onion, such as Vidalia, in 1/4-inch dice
  • 3 tablespoons chopped fresh chives
  • 1/4 cup oil-cured olives, pitted and chopped
  • 1/4 teaspoon salt
  • 1/3 cup fresh or store-bought salsa
  • 3 tablespoons fresh lime juice
  • 3 tablespoons Filippo Berio extra-virgin olive oil


  • Reduce the white wine in a pot by simmering until the strong alcoholic smell is cooked off.
  • Rub the tuna steaks with olive oil, and sprinkle with salt and pepper.
  • Place the tuna steaks into the Crock-Pot.
  • Sprinkle the crushed garlic on top of the tuna steaks.
  • Place 2 lemon slices on top of each tuna steak.
  • Pour the reduced wine into the pot.
  • Secure the lid onto the pot and set the temperature to HIGH.
  • Cook for 3 hours.
  • In the meantime, Mix the Onion, tomato, chives, olives, salt, and salsa together in a medium bowl. Add the lime juice and olive oil, and mix well.
  • Remove the tuna steaks from the crock-pot and pour the sauce around them and serve it immediately.