This is a great, quick, easy summer recipe. I use only fresh zucchini and squash in season. I use the can of diced tomatoes because it's faster and easier. If you want to use fresh Jersey tomatoes in season, fresh basil and fresh oregano, knock yourself out. Pick a nice, green zucchini that's about cucumber-size... no larger or it's loaded with seeds and too big. Same with the yellow squash. I use two small ones, about 5" in length. Smaller is better when it comes to these vegetables.
1) Cut the zucchini and squash into discs 1/4" thick. Cut up the onion... I rough-chop it country style. Mince the garlic.
2) Heat a soup pot, melt some butter, and throw in all the above. "Sweat" it down for a couple of minutes and add the can of tomatoes. Salt and pepper to taste, then let it simmer for about 25 minutes.
This makes a great side dish for anything, but I really like it when preparing broiled or fried fish. Serve it with your favorite rice. You're talking 30 minutes to make the whole meal, a complete, well-balanced, nutritious fresh vegetable medley.
Knock yourself out!