Roasted Mushroom Caps with Walnut Lemon Pesto

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Skill Level
Preparation Time 5 minutes Total Time 10 minutes
Servings 12 (pesto) / 4 (mushrooms) Cost Per Serving $0.92
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1 bunch (about 2 cups)​Parsley or Basil
1/4 cupWalnuts, toasted
1-2 clovesGarlic, toasted
3Anchovy Fillets (optional)
1Lemon, juice and zest
1Chili Pepper (optional)
1/2 cupExtra Virgin Olive Oil
Roasted Mushrooms Ingredients
4Portobello Mushrooms, stems removed
1/4 tspSea Salt and Freshly Ground Black Pepper
1/4 cupParmesan Cheese, grated (optional)


  1. For the pesto you can chop everything finely by hand and stir in the olive oil and lemon juice.
  2. Or, place everything except the oil in a food processor and pulse until finely minced. Then run the processor and slowly add in the olive oil.
  3. Jar the pesto and refrigerate for up to 7 days. Or add to a freezer bag and freeze for up to 6 months.
  4. Preheat the oven to 400 degrees F.
  5. Lightly season mushroom caps with salt and pepper and place top side down on a baking sheet or dish. Bake for about 15 to 20 minutes.
  6. Carefully remove from the oven, spread a large spoonful of your walnut pesto over top. Grate on some parmesan cheese and place back into the oven for 5 minutes until cheese is lightly golden brown.


  • Eating during cancer treatment can sometimes be difficult. You do not always need to eat more food to get more calories. Adding high fat ingredients from healthier fats such as olive oil, nuts and avocados can help boost the calories in a meal or snack.  
  • Including fat in your diet is important. Fat in food helps carry flavour and adds texture. Fat gives you energy and absorbs important vitamins such as vitamin A, D, E and K. Fats also help maintain your body temperature.  ​
  • Omega 3 fatty acids are essential and needed for good health as they play role in lowering inflammation. Our bodies cannot make omega-3's so it is important to get them from our diets. Some sources of omega-3 include fatty fish (salmon, tuna, mackerel, trout, sardines and anchovies), walnuts, flaxseeds, and canola and soybean oil. 
  • Make sure to get enough calories and protein, talk to a registered dietitian to help determine your needs.