
This vibrant mix of oven-roasted veggies takes plain garden staples and turns them into a mouthwatering side that feels right at home next to any main. Tossing together yellow squash, zucchini, and asparagus gives you a dish that’s loaded with nutrients and looks great on your table too.
This dish came to life one summer when squash was going wild in my garden and asparagus was everywhere at the market. Now it’s what my family asks for whenever they want something special—whether it’s a regular Tuesday or we’re gathering with everyone for a meal.
Vibrant Ingredients
- Dried parsley: Pops of green and fresh, mellow flavor all over.
- Fresh rosemary: Gives you woodsy, earthy notes that tie the veggies together.
- Button mushrooms: Earthy, hearty, and super satisfying once roasted. Pick ones that look white and don’t have brown spots.
- Olive oil: Helps everything get crispy and delicious. Extra-virgin’s best, but any good olive oil works.
- Garlic cloves: Really amps up the flavor. Go for fresh and mince them tiny so the flavor spreads all around.
- Yellow squash: Brings a pop of color and a faint sweetness. Find ones that feel solid and don’t have mushy ends.
- Zucchini: Adds a gentle bite and caramelizes nicely. Medium size is perfect.
- Asparagus: Snappy, green, and adds a nice bright snap. Make sure the stalks are firm and tips are tight.
Simple How-To
- Rest and Serve:
- Pull the pan out, give it 5 minutes to cool so flavors settle in, then spoon those veggies next to your mains.
- Roast the Veggies:
- Pop the pan in the middle of your hot oven. About halfway through (maybe 15 minutes), make sure to stir things up. Then finish roasting for 15 to 25 minutes more, until they’re fork-tender and edges are golden.
- Coat and Season:
- Pour in a good couple spoons of olive oil, toss over some dried parsley and bits of fresh rosemary. Mix with a spoon or your hands so every piece gets a hit of oil and herbs.
- Layer the Veggies:
- Spread all your chopped vegetables evenly to avoid crowding—if they’re cramped, they’ll steam, not roast. Lay everything single layer in a decent-sized pan.
- Chop and Prep the Vegetables:
- Give all the veggies a cold-water rinse. Slice mushrooms evenly, chop the zucchini and yellow squash into bite-size pieces, cut asparagus into chunks after snapping off the tough bottoms, and mince your garlic real small.
- Heat Up the Oven:
- Crank your oven to 425°F and let it really preheat for 10 minutes. That way, the veggies get nice color and don’t end up soggy.

I’m completely obsessed with how the soft asparagus and just-done squash play off each other. My husband avoided veggies for most of his life but now bugs me to make this every week. Rosemary brings me back to old-school Sunday family meals—nothing beats that herb in here.
Tasty Matches
You can plate this veg mix next to loads of mains. Classic with grilled salmon or chicken. Going meat-free? Pile on quinoa or farro, and shake over some feta. These flavors even work with Mediterranean-style lamb or baked cod too.
Saving & Leftovers
Tuck extra portions into a sealed container and keep chilled for up to three days. If possible, skip the microwave—reheat at 350°F for about ten minutes. Keeps the veggies from turning mushy. Leftovers also rock in omelets, tossed into pasta, or topped on bowl meals.
Handy Swaps
If you’re missing an ingredient, don’t sweat it. Try bell peppers instead of mushrooms for a switch-up. No fresh rosemary? Use dried but put in just a little. Thyme or oregano does the job, too. In cooler months, swap in sweet potato cubes for summer squash—it’s just as tasty.

Frequently Asked Questions
- → What keeps the veggies from getting mushy?
Chop the veggies close to the same size, roast at 425°F, and stir partway through so they cook evenly and don’t burn.
- → Can I swap in other greens or herbs?
For sure! Try thyme, basil, or oregano for a new twist. They play well with these veggies.
- → How would you serve it up?
I like it next to grilled meat, mixed into warm pasta, or piled onto a grain bowl for a filling meal.
- → Is it fine to prep the veggies early?
Yep, just chop and season your veggies ahead of time and chill them in the fridge until you’re set to cook.
- → How should I keep any extras?
Stash the leftovers in a container with a lid. Keep in the fridge up to three days, and warm them in the oven so they stay crisp.
- → Can I throw in more veggies?
No problem! Stuff like sweet potatoes, cherry tomatoes, or bell peppers add extra color and flavor.