You will need to adjust this recipe to the sizes of meat or veggies you are marinating....I have used it on everything from pasta to fish to chicken, beef and it is really good on grilled veggies.
6 Tbsp extra virgin olive oil
Zest of 2 lemons
6 cloves garlic, minced or pressed
2 Tbsp chopped fresh parsley
2 tsp kosher salt
1 tsp fresh ground pepper
Whisk all together and add to meat and coat. Put in refrigerator for at least 2 hours.