Mediterranean Cauliflower Casserole

We love casseroles!

Casseroles usually have a lot of brown going on. But this Mediterranean Cauliflower Casserole is bright and vibrant!

And despite the word Mediterranean there is no oil in the recipe – I think Mediterranean summons thoughts of glugs and glugs of olive oil. Instead, its title refers to some incredibly flavorful, colorful, and nutritious foods that grow (not exclusively but abundantly) in this area of the world. Think whole olives, garlic, lemon, green leafy vegetables, herbs and spices. 

They’re all tossed into a casserole dish, drizzled with a sesame-based sauce, and slid into the oven.

This recipe is from Plant-Based Delicious – my new cookbook that’s all about using flavorful whole foods to make mouth-watering, ridiculously healthy meals.

You serve it on its own or paired with a warm cooked grain like quinoa, brown rice, or millet.

And keeping with the Mediterranean theme, you can also serve this cauliflower casserole family-style. Many meals in this lively region are about gathering and sharing dishes rather than sitting down to your own plate. I love this style of dining and it’s an approach I’ve been taking more and more when we have company over. I shared how I do this on Instagram.



The inspo for this Mediterranean cauliflower casserole was the weeknight tempeh casserole from The Plant-Based Cookbook. I’ve received so many love letters (emails) about this recipe and I love it too! We usually have it twice a month, which is a big deal considering I struggle to cook the same thing twice (always in creator mode). I took the method of that recipe and applied it to different whole foods and another flavor profile. I have many more iterations in the works.


Mediterranean Cauliflower Casserole

Author : Ashley Madden
Prep Time: 15 mins
Cook Time: 1 hr
Total Time: 1 hr 15 mins
Servings: 6
Course: Main Course
Cuisine: Mediterranean
Keyword: casserole, cauliflower, vegan
5 from 3 votes
This is a one-dish recipe from Plant-Based Delicious – my vegan, gluten-free, oil-free cookbook! You can serve it on it's own or paired with cooked grains. It can serve 4 to 8 people.


  • BLENDER for the sauce



  • 4 cups (400 g) bite-sized cauliflower florets
  • 1 large red onion thinly sliced
  • 1 red or yellow bell pepper seeded, stemmed and cut into 1˝ [2.5-cm] pieces
  • 1 cup (100 g) pitted black or green olives, sliced if desired
  • 1 ½ cups (255 g) cooked or canned chickpeas, drained and rinsed
  • 1 cup (30 g) baby spinach or kale
  • 1 cup (180 g) uncooked millet or white quinoa for serving


  • cup (80 g) stirred tahini
  • cup (80 ml) fresh lemon juice
  • 3 large cloves garlic crushed and peeled
  • 1 tbsp (15 ml) red wine vinegar
  • tsps (2 g) dried oregano
  • 1 tsp dried parsley
  • ¾ cup (175 ml) water
  • 1 tbsp (8 g) arrowroot starch
  • ¼ tsp sea salt or to taste
  • Pinch of black pepper


  • 1 small bunch fresh mint
  • 2 tbsp (16 g) sesame seeds
  • Lemon wedges


  • Preheat the oven to 425ºF (220ºC).
  • Start with the casserole: Put the cauliflower, onion, bell pepper, olives and chickpeas in a 9 x 13–inch (23 x 33–cm) casserole dish.
  • Make the tahini sauce: In a blender, combine the tahini, lemon juice, garlic, vinegar, oregano, parsley, water, arrowroot, salt and pepper, and blend until smooth. Pour the sauce over the vegetables in the casserole. Stir to coat all the veggies, then cover tightly with tinfoil.
  • Roast in the oven for 60 minutes, stirring once around the 40-minute mark. It’s done when the cauliflower is fork-tender and the sauce is bubbling.
  • When about 20 minutes are left on the casserole, cook the millet according to the package directions. Once cooked, fluff with a fork and cover until needed.
  • When the casserole is ready, remove it from the oven and stir in the spinach. Cover again for a few minutes to let the greens wilt. Taste and reseason with salt, if needed. Spoon the millet into bowls and top with the casserole. Garnish with mint and sesame seeds and serve with a lemon wedge.
Keyword casserole, cauliflower, vegan
Did you make this recipe? Tag @riseshinecook on Instagram or hashtag it #riseshinecook


Olives: My best friend hates olives (I’m not judging, but I’m judging). You can simply omit them however they do add a pleasant brininess to the casserole. You could add a 1/3 cup of capers instead to get a little extra zing with every other bite.

Tahini: You can use cashews for the tahini. Use ½ cup of cashews and when blending add more water as needed until it’s pourable.

Chickpeas: You can use navy beans, cannellini beans, black beans, or borlotti beans instead of chickpeas.


Leftovers hold up great in the fridge for up to 5 days. I wouldn’t freeze this dish as the thawed veggies will be mushy.

More from Plant-based delicious!

Butternut Squash Dahl with Cashew Milk and Kale
This dahl is from Plant-Based Delicious! My new cookbook all about making healthy taste delicious. It's easy, elegant, and absolutely delicious!
Check out this recipe
One Pot Tuscan Pasta
A sneak peek into Plant-Based Delicious – my new cookbook! This plant-based, oil-free one pot tuscan pasta is easy (really!) and delicious! It's a great family meal to serve any weeknight.
Check out this recipe


  1. Reply


    May 24, 2023

    This looks delicious. Do you know how many calories are in the casserole? I plan to serve it for our girl’s yoga lunch.

    • Reply

      Ashley Madden

      May 24, 2023

      Thank you Trish! I don’t know the calories. I mostly focus on whole foods and their overall nutritional value rather than calorie counting. However I appreciate that this might be an inconvenience, so sorry about that! You could plug all the ingredients into a nutrition or fitness app and that will give you the break down 🙂 I hope you love it!


  2. Reply


    May 26, 2023

    5 stars
    I made this last night and my mouth was watering at lunchtime today for leftovers. We love the tempeh casserole too but this one is a new favorite! So easy and so delicious. Thank you!

    • Reply

      Ashley Madden

      May 26, 2023

      Amazing Kristi! Thank yo so much for sharing 🙂 We love this one too!!!


  3. Reply

    Mary L Harrington

    January 22, 2024

    5 stars
    I made this but added a few extras: 1 long eggplant, 1 yellow squash, some toasted pine nuts. It’s really delicious!

    • Reply

      Ashley Madden

      February 13, 2024

      Amazing additions Mary! I’m going to add eggplant next time! Thanks for the feedback!

  4. Reply


    May 18, 2024

    5 stars
    This is the BEST. I make it at least once a week. One pan lasts 3 days. I never tire of it. I have left out the spinach. I live about 40 minutes to the nearest, affordable grocery store. I shop about once a month. AMAZING! This is exceptional.

    • Reply

      Ashley Madden

      May 21, 2024

      Thank you Charmaine! I appreciate the feedback! I’m so glad you love it, I enjoy the leftovers almost more 🙂


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