Grilled Broccoli and Onions with Lemony Caper and Thyme Sauce

Is it too hot to fire up your oven these days? Me too. That’s why I’m bringing you this recipe for Grilled Broccoli and Onions. Because the grill isn’t just for meat!

Grilling the vegetables creates a yummy, smoky char on them that goes perfect with summer, without heating up your whole house. (If you like grilling veggies, check out this recipe!)

Close up of grilled broccoli and onions.

For grilling vegetables and other small items, I recommend using a grill pan. That way, all the bits and pieces (flavor) will stay on the grill, instead of falling through the grates. If you don’t have a grill pan, you can cover a portion of your grill with foil before preheating it.

If you’re really pressed for time (or if you just don’t want to make it), the sauce could be forgone. The dish will be good without it. But really, look at how bright and sunny it is!

Lemony Caper and Thyme Sauce

The lemony caper and thyme sauce really pulls everything together, and brightens the vegetables. When I want to add a little salt to a dish, my favorite thing to do it to find a briny whole food to use. That way, I increase the fiber and antioxidants of the dish a little, even though I’m increasing the sodium. Plus, with ingredients like capers, olives, and pickles, you really don’t need to use a lot because the brininess is so concentrated.

If you don’t care for capers, minced green olives would work just as well!

Grilled broccoli and onions with lemony caper and thyme sauce will be a hit at your next barbecue, guaranteed!

Grilled broccoli and onion
Grilled broccoli and onions close up
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Grilled Broccoli and Onions with Lemony Caper and Thyme Sauce

The grill isn't just for meat! This vegetable side is bright and sunny, yet smoky. A perfect summer side!

Course Side Dish, vegetable
Cuisine American
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings 6
Calories 116 kcal
Author Laura Yautz



  • 1 lb Broccoli Florets, fresh or frozen
  • 1 large Onion, halved and sliced
  • 4 Garlic Cloves, sliced
  • 2 tbsp Olive Oil
  • 1/2 Lemon

Lemony Caper and Thyme Sauce

  • Zest of 1 Lemon
  • Juice of 1/2 Lemon
  • 1 tbsp Fresh Thyme leaves
  • 1 tbsp Capers
  • 1 1/2 tbsp Olive Oil


  1. Preheat grill on medium heat.

  2. Toss broccoli, onions, and garlic cloves with olive oil and place on grill pan.

  3. Move the grill pan to preheated grill, and squeeze ½ lemon over the mixture.

  4. Grill on medium heat for about 10-15 minutes, or until desired level of doneness is reached, stirring every 5 minutes to prevent burning.

  5. Meanwhile, whisk all ingredients for the sauce together, until combined.

  6. Scoop broccoli onto serving plate, and drizzle with lemony caper & thyme sauce. Serve immediately.

Nutrition Facts
Grilled Broccoli and Onions with Lemony Caper and Thyme Sauce
Amount Per Serving
Calories 116 Calories from Fat 77
% Daily Value*
Fat 8.6g13%
Saturated Fat 1.2g8%
Polyunsaturated Fat 0.9g
Monounsaturated Fat 5.8g
Sodium 60.1mg3%
Potassium 321.9mg9%
Carbohydrates 10.5g4%
Fiber 2.7g11%
Sugar 3.5g4%
Protein 2.6g5%
Vitamin A 23.6IU0%
Vitamin C 86.5mg105%
Calcium 46mg5%
Iron 0.7mg4%
* Percent Daily Values are based on a 2000 calorie diet.
Grilled broccoli and onions pinterest graphic

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